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Applying the Changes of a Single File from a Git Stash
In order to apply only changes for a selected file from the git stash you can use the following command line (bash):
git diff stash@\{0\}^1 stash@\{0\} -- path/to/your/file | git apply
Based on the Stackoverflow question: How would I extract a single file (or changes to a file) from a git stash?