enh(files): Allow to copy files into same directory

[susnux]

• Bring back: Copy a file to the same directory #10825
• Resolves Copy whole folder fails because of 'target exists' #18846
• Resolves Allow to duplicate a file by copying it to the same directory #10441
• Resolves: [Bug]: Not able to create a copy of a file in the same directory #41768

Summary

Bring back copy to current directory behavior which will clone the file and add a "copy" suffix on the file name.

Checklist

• Code is properly formatted
• Sign-off message is added to all commits
• Tests (unit, integration, api and/or acceptance) are included
• Screenshots before/after for front-end changes
• Documentation (manuals or wiki) has been updated or is not required
• Backports requested where applicable (ex: critical bugfixes)

[emoral435]

Just needs the file part and it LGTM!!

[susnux]

@emoral435 can you check again if that still happens for you?

[emoral435]

Checked, and it works perfectly for me now :) sorry for being nitpicky!

[emoral435]

@skjnldsv before we merge this in, it still says that you have requested changes. I'm 99% sure your fine with this, but just to make sure, all the changes now are fine by you, correct? :)

[skjnldsv]

/backport eaad30c b29c0cc a289fdd to stable28