Copying keyframes ignores keyframe type, no bulk change of keyframe type possible
When copying keyframes within the same effect and clip, the keyframe type is ignored and set to `linear`, even when the default keyframe type is set to something else.
Additionally, selected keyframes cannot be changed to a different type at once.
After an unsuccessful bulk change attempt, selecting a new set of keyframes greys out the keyframe type icon.
Tested in 25.08.3 (Flatpak and appimage) and RC 25.12
issue