Merge branch 'kk/revwalk-slop-too-many-commit-within-a-second'

Allow the revision "slop" code to look deeper while commits with exactly the same timestamps come next to each other (which can often happen after a large "am" and "rebase" session). * kk/revwalk-slop-too-many-commit-within-a-second: Fix revision walk for commits with the same dates