Changes tree/branch after following a link

[rodrigograca31]

Describe the bug
It changes tree/branch after following a link

To Reproduce

1. Go here: https://github.com/rodrigograca31/Intro-Python-II/blob/master/src/adv.py
2. Click on one of the imports.
3. Notice the original URL I gave you had /blob/master/... and now it has /blob/[COMMIT ID]/...

Expected behavior
It should stay in the same tree/branch and not go to the blob/commit one (/blob/master/...)

Not specific to Python. JS also at least.
Yes it works as it currently is but it got me confused and its as if it left the branch we were looking at.

[stefanbuck]

I see why this is confusing and maybe there is something we can do to make this a better experience. I can't promise anything, because the full url with the commit ID is needed to make linking working in PRs. I'll look into it.