Splitting two linked clips should result in three linked clips
@doug.summerville
Submitted by b'Doug Summerville' Assigned to b'Doug Summerville' @doug.summerville
Description
When a linked audio/video clip is split, it results in the left-hand (earlier) sub-clip remaining linked while the right-hand (later) sub-clip is not linked. It does not seem logical to have this behavior. If the clip is linked before splitting, then both sub-clips should be linked.
Imported from https://bugzilla.gnome.org/show_bug.cgi?id=642487