Feature Request: Recursive Blame

[severinraez]

In magit, it's possible to "recursivly blame": In the blame view, move the cursor to a line, then press "b" again to open a blame view of the parent of the revision which modified said line. This allows quickly understanding how a certain feature evolved in a file, and finding older relevant commits and the issue numbers their comments might contain.

Or, as the magit manual states: If Magit-Blame mode is already turned on in the current buffer then blaming is done recursively, by visiting REVISION:FILE (using magit-find-file), where REVISION is a parent of the revision that added the current line or chunk of lines.

I post this because the readme states that feature requests are welcome. Every now and then I miss this feature but not yet enough to submit a PR :)