Fix erroneous freeing of ical timezone component (backport #1530) #1531
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The icalendar component for a given timezone is now duplicated in icalendar_from_string because it the original one should not be freed. Doing so would cause double-free errors when modifying multiple schedules in the same process, e.g. in a single GMP connection. (cherry picked from commit 33e6539)
(cherry picked from commit 80bb0d2)
timopollmeier
approved these changes
May 25, 2021
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This is an automatic backport of pull request #1530 done by Mergify.
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