$ git clone -n https://src.fedoraproject.org/rpms/ghc-lrucache.git /var/lib/mock/f38-build-side-42-init-devel-917499-28734/root/chroot_tmpdir/scmroot/ghc-lrucache
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-917499-28734/root/chroot_tmpdir/scmroot/ghc-lrucache'...
$ git fetch origin 42134cb4a08a55f9c6f5ae9bdbe224202903de7e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-lrucache
 * [new ref]         42134cb4a08a55f9c6f5ae9bdbe224202903de7e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 42134cb Convert to %autorelease and %autochangelog