task schedule: fix end-of-month validation bug #23329
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gulducat
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backport/ent/1.8.x+ent
jrasell
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Jun 14, 2024
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Fix erroneous "end cannot be sooner than start" error condition on the last day of the month.
By building "
next endfromfrom" instead of "next endfromnext start" (we actually use the latter for the schedule), on the last day of any given month, the nextstart.Day()would be1(the first of the next month), which is less than the currentend.Day()-- whatever the last day of the month is,28-31-- so it would mistakenly think the user provided improper values. (I'm sorry, this is really hard to put into plain language... hopefully the code makes sense.)I happened to be starting some e2e testing (not present in this PR) at the end of May and bumped into this, so formalize with a unit test case, and also include Fuzz testing to try and catch other possible unforeseen gotchas (I got it to catch this one, but fortunately(?) it did not foresee any more).
Fixes #23159