jmap_ical.c: reject non-integer priority value #5230
Merged
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The conditional that validates the priority property value to be in the valid range from 0..9 had an error, effectively accepting any JSON value as a valid priority value. Any non-integer JSON value resulted in priority 0 to be set.
This patch keeps accepting any JSON integer value as priority (contrary to RFC8984 requiring it to be in the 0..9 range), but now rejects any non-integer JSON value.
Fixes #5226