Allow the use of "Edit single file" to edit an empty file

Proposal

As for the version 16.7, it is possible to use either "Edit single file" or "Open in Web IDE" to edit a non-empty file. However, for an empty file, the only way to modify it is by selecting "Open in Web IDE", as it is the sole option available.

This issue is a proposal to add the possibility to use "Edit single file" to edit an empty file.

I already posted in the forum, to make sure I didn't miss anything that hides that feature : https://forum.gitlab.com/t/impossible-to-edit-single-file-to-edit-an-empty-file/114896 Having no answer, I guess making an issue was the next better move to ask for a change.

afaik, there is no other related issues.