PR: Prevent double saving when running a file

[andfoy]

Description of Changes

This PR fixes some autoformatting overlaps when a file is run in the iPython console due to duplicate calls to save when autoformatting on save is enabled

• Wrote at least one-line docstrings (for any new functions)
• Added unit test(s) covering the changes (if testable)

• Included a screenshot or animation (if affecting the UI, see Licecap)

Issue(s) Resolved

Fixes #14653

Affirmation

By submitting this Pull Request or typing my (user)name below,
I affirm the Developer Certificate of Origin
with respect to all commits and content included in this PR,
and understand I am releasing the same under Spyder's MIT (Expat) license.

I certify the above statement is true and correct: @andfoy

[pep8speaks]

Hello @andfoy! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2021-02-16 14:18:23 UTC

[ccordoba12]

Thanks @andfoy for your help!