Pull requests show stale changes

[alexandercerutti]

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Bug

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It often happens to me to apply a change on a branch (dev) but I forget to push it.

Then, I create a new branch (feat) to introduce another change that origins from dev and will go into that. This new branch feat leads me to create a new Pull Request.

So, as expected, feat shows both the change I didn't push yet on dev and the changes applied in feat.

However, when I decide to push dev, the Pull Request keeps showing the previously-not-pushed change as a changed that will get merged, while it shouldn't.

I even tried to rebase feat onto dev but it didn't change.

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