tabbed: eliminate double-free on error path #1985

	---
	name: Windows

	on:
	pull_request:
	push:
	branches:
	- master

	jobs:
	tests:
	defaults:
	run:
	shell: msys2 {0}
	env:
	COLORTERM: truecolor
	TERM: xterm
	name: 🏁 build, test, & install
	runs-on: windows-2022

	steps:

	- name: Install tools and libraries via MSYS2
	uses: msys2/setup-msys2@v2
	with:
	msystem: UCRT64
	update: true
	install: >
	base-devel
	git
	mingw-w64-ucrt-x86_64-cmake
	mingw-w64-ucrt-x86_64-doctest
	mingw-w64-ucrt-x86_64-openimageio
	mingw-w64-ucrt-x86_64-libdeflate
	mingw-w64-ucrt-x86_64-libunistring
	mingw-w64-ucrt-x86_64-ncurses
	mingw-w64-ucrt-x86_64-toolchain
	mingw-w64-ucrt-x86_64-ninja

	- uses: actions/checkout@v2

	- name: Build libqrcodegen
	run: \|
	mkdir "${HOME}/repos" && cd "${HOME}/repos"
	git clone https://github.com/nayuki/QR-Code-generator.git
	cd QR-Code-generator/c
	make
	cd /ucrt64/include && \
	ln -s "${HOME}/repos/QR-Code-generator/c" ./qrcodegen
	cd /ucrt64/lib && \
	ln -s "${HOME}/repos/QR-Code-generator/c/libqrcodegen.a" ./libqrcodegen.a

	- name: config
	run: \|
	mkdir build && cd build
	cmake .. \
	-GNinja \
	-DCMAKE_BUILD_TYPE=Release \
	-DUSE_MULTIMEDIA=oiio \
	-DUSE_PANDOC=off \
	-DUSE_QRCODEGEN=on \
	-DUSE_STATIC=off

	- name: build
	run: \|
	cd build
	ninja

	# this is not going to work until we have a ConPTY CI environment
	# - name: test
	#run: \|
	#cd build
	#ctest --output-on-failure

	# - name: install
	#run: \|
	#cd build
	#ninja install

	#- name: python wrappers
	#run: \|
	#python3 -m pip install --upgrade pip
	#pip install pypandoc
	#cd cffi
	#python3 setup.py sdist build
	#python3 setup.py install
	#notcurses-pydemo > /dev/null
	#ncdirect-pydemo > /dev/null

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