Backport of "urisourcebin: Propagate sticky events from parsebin" into 1.22
Backport of !4203 (merged) "urisourcebin: Propagate sticky events from parsebin".
Commits:
- 7f1c5e2e urisourcebin: Propagate sticky events from parsebin
Backport of !4203 (merged) "urisourcebin: Propagate sticky events from parsebin".
Commits: