Meta strip range was adjusted in versioning because of previous issues
by function `version_fix_seq_meta_range`. After `speed_factor` property
was added, this changed how function works and result was incorrect
function due to uninitialized property value.
Running `version_fix_seq_meta_range` after `seq_speed_factor_set` fixes
this issue.
Reviewed By: sergey
Differential Revision: https://developer.blender.org/D16606
5a504a0d9d