"Save As" creates unwanted hierarchy of folders

[throblet]

Describe the bug
Using the "Save As" menu option in an existing project folder created a 1257 folder hierarchy of identically named folders.

To Reproduce
Steps to reproduce the behaviour:

1. Open existing one file project
2. On "File" menu click "Save As" and fill in new name (I used "Check pins test with midi")
3. I think the IDE then died - happened late last night
4. Have a list of folders which I cant delete by normal means called "Check pins test with midi\Check pins test with midi\Check pins test with midi...."

Expected behaviour
I am a newbie to Arduino so may have done something wrong but would expect a new folder and/or file to be created, not a whole list of folders

Desktop (please complete the following information):

• OS: Windows 10
• Version: 2.0.0-beta.3
  Date: 2021-02-26T10:48:13.025Z
  CLI Version: 0.16.1 alpha [76f55490]

[rsora]

@throblet Thanks for your report!

This is a known IDE issue (and also an high priority one 😸 ), I'll mark this as a duplicate of #65 and close it, please follow the discussion there!