git-log on a file, and merges

Hi,

I have merged a branch into master.

When on master I do "git log -- some/file", it does not show commits from merged branch (which I know they changed the file). I have to add "--full-history" to see the commits. When I run "git log" (without "-- some/file") I can see the commits without using "--full-history".

This seems not logical, and contrary to user expectations. Harmful even ;)

Am I missing something?

git version 2.22.0.rc1.windows.1

Thanks