fix(client): handle reset after saving learner code

[ojeytonwilliams]

Checklist:

• I have read and followed the contribution guidelines.
• I have read and followed the how to open a pull request guide.
• My pull request targets the main branch of freeCodeCamp.
• I have tested these changes either locally on my machine, or GitPod.

Closes: #55100

Now the behaviour is the same if you save -> reload -> reset or just save -> reset. In both cases the code will be reset to whatever you last saved.

[naomi-lgbt]

failing test is from the missing spec file - fixed on main