diff --git a/.github/workflows/comment_trigger_benchmark.yml b/.github/workflows/comment_trigger_benchmark.yml
index 78536ceddd..2c836f2b92 100644
--- a/.github/workflows/comment_trigger_benchmark.yml
+++ b/.github/workflows/comment_trigger_benchmark.yml
@@ -1,5 +1,7 @@
 name: Run benchmarks from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -23,7 +25,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_example.yml b/.github/workflows/comment_trigger_example.yml
index 1a0eeecaaf..b8b0d0d066 100644
--- a/.github/workflows/comment_trigger_example.yml
+++ b/.github/workflows/comment_trigger_example.yml
@@ -24,10 +24,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          # ref: ${{ steps.comment-branch.outputs.head_ref }}
           # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
           ref: refs/pull/${{ github.event.issue.number }}/head
-
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_test_itensorgaussianmps.yml b/.github/workflows/comment_trigger_test_itensorgaussianmps.yml
index d2bfb5877d..74e26bedc8 100644
--- a/.github/workflows/comment_trigger_test_itensorgaussianmps.yml
+++ b/.github/workflows/comment_trigger_test_itensorgaussianmps.yml
@@ -1,5 +1,7 @@
 name: Run ITensorGaussianMPS tests from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -35,7 +37,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_test_itensorglmakie.yml b/.github/workflows/comment_trigger_test_itensorglmakie.yml
index 8c006a0df6..167dbf99f0 100644
--- a/.github/workflows/comment_trigger_test_itensorglmakie.yml
+++ b/.github/workflows/comment_trigger_test_itensorglmakie.yml
@@ -1,5 +1,7 @@
 name: Run ITensorGLMakie tests from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -35,7 +37,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_test_itensors_mps.yml b/.github/workflows/comment_trigger_test_itensors_mps.yml
index 07c4472cd4..977fa9c464 100644
--- a/.github/workflows/comment_trigger_test_itensors_mps.yml
+++ b/.github/workflows/comment_trigger_test_itensors_mps.yml
@@ -1,5 +1,7 @@
 name: Run ITensors mps tests from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -35,7 +37,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_test_itensorunicodeplots.yml b/.github/workflows/comment_trigger_test_itensorunicodeplots.yml
index bcab71d65a..1a0f5cda7a 100644
--- a/.github/workflows/comment_trigger_test_itensorunicodeplots.yml
+++ b/.github/workflows/comment_trigger_test_itensorunicodeplots.yml
@@ -1,5 +1,7 @@
 name: Run ITensorUnicodePlots tests from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -35,7 +37,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/comment_trigger_test_itensorvisualization.yml b/.github/workflows/comment_trigger_test_itensorvisualization.yml
index 956e60deea..9f09af0ac3 100644
--- a/.github/workflows/comment_trigger_test_itensorvisualization.yml
+++ b/.github/workflows/comment_trigger_test_itensorvisualization.yml
@@ -1,5 +1,7 @@
 name: Run ITensorVisualizationBase tests from comment trigger
 
+# https://dev.to/zirkelc/trigger-github-workflow-for-comment-on-pull-request-45l2
+
 on:
   issue_comment:
     types: [created]
@@ -35,7 +37,8 @@ jobs:
       - name: Checkout PR branch
         uses: actions/checkout@v3
         with:
-          ref: ${{ steps.comment-branch.outputs.head_ref }}
+          # https://github.com/actions/checkout/issues/331#issuecomment-1438220926
+          ref: refs/pull/${{ github.event.issue.number }}/head
       - name: Setup Node.js 16
         uses: actions/setup-node@v3
         with: