7e2b383553
Similar to what qtdemux does in `gst_qtdemux_stream_update_segment()`, in which case we want to resend tags according to our position. By setting the changed flag for all stream tags we ensure they will all be (re-)send as we progrees. This notably ensures that rotation tags are not lost when video players finish playback and jump back to the beginning of a video. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8429>