perl

only force-allocate "child" pdls #3253

Job	Run time
notify	24s
ci-ubuntu-containers (centos:centos7)	4m 46s
ci (ubuntu-latest, 5.10)	2m 13s
cygwin	0s
ci (5.30, ubuntu-latest, true, true)	3m 47s
ci (5.30, ubuntu-latest, true)	2m 56s
ci (5.30, ubuntu-latest, 1)	2m 56s
ci (5.30, ubuntu-latest, true)	3m 10s
ci (5.30, ubuntu-latest, true)	2m 54s
ci (5.30, ubuntu-latest, true)	3m 3s
ci (5.26, windows-latest)	6m 31s
ci (5.30, macos-latest)	8m 29s
build-status	26s
	41m 35s

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