Ticket #4627: fix segfault in the help engine #152

Job	Run time
call-build-alpine / build-alpine	2m 4s
call-build-fedora / build-fedora	1m 50s
call-build-macos / build-macos	1m 36s
call-build-freebsd / build-freebsd	3m 5s
call-build-ubuntu / build-ubuntu	4m 16s
call-build-solaris / build-solaris	5m 8s
	17m 59s

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