An error occurred '/usr/bin/git rev-list --format=%H%x02%P%x02%aN%x02%aE%x02%at%n%B%n%x03END%x04 --no-walk 8a1b904f0fa31dd32305c9c219dcf03cc11239a5 8a1b904f0fa31dd32305c9c219dcf03cc11239a5^@ --' exited with code 141

In rare edge cases where git rev-list --no-walk ... doesn't return the commit Stash was expecting before its parents, because their dates are out of order, Stash may display this error on certain pull requests.

An error occurred
'/usr/bin/git rev-list --format=%H%x02%P%x02%aN%x02%aE%x02%at%n%B%n%x03END%x04 --no-walk 8a1b904f0fa31dd32305c9c219dcf03cc11239a5 8a1b904f0fa31dd32305c9c219dcf03cc11239a5^@ --' exited with code 141

Final fix:
After upgrading Stash to a fixed version (3.6.1, 3.7.0, etc.), you will also need to upgrade Git on the server to 1.8+.