Missing files after merging GIT branches?

Question

git

There is a remote repository and a dev branch, in which someone changed file1 and added file2, file3.
Actions: pull remote_reponext merge remote_repo/dev
There are some conflicts, but most importantly, when merging, file3 did not get into the local branch, although it diff remote_repo/devshows that the file is present.
But if checkout -b test remote_repo/devthen file3 is present in the test branch.
Actually the question is: how to make file3 appear in the local dev branch?

Answer 1

The wrong remote repository was being tracked...

Answer 2

Note: merge remote_repo/dev is not needed after pull remote_repo dev, since it is already done in pull.
My guess is that file3 was also created and then deleted in the local branch prior to the merge or conflict resolution.