This would still overwrite (even though frames existed).
Mistake in 6b9a500a3a.
char "filepath" was already in use/shadowed, instead use "filepath_view" to
correctly glue path/suffix together (as done already a bit below for the
R_TOUCH case).
Pull Request: https://projects.blender.org/blender/blender/pulls/117696
5e2bad1589