Backport of "tsmux: Recheck existing pad PIDs when requesting a new pad with a random pid" into 1.18
requested to merge tpm/gst-plugins-bad:backport-mr-2317-into-1.18-tsmux-pid-collision-after-reset into 1.18
Backport of !2317 (merged) "tsmux: Recheck existing pad PIDs when requesting a new pad with a random pid".
Commits:
- 127ade39 tsmux: Recheck existing pad PIDs when requesting a new pad with a random pid