$ git clone -n https://src.fedoraproject.org/rpms/p7zip.git /var/lib/mock/f41-build-858207-168325/root/chroot_tmpdir/scmroot/p7zip
Cloning into '/var/lib/mock/f41-build-858207-168325/root/chroot_tmpdir/scmroot/p7zip'...
$ git fetch origin 734988334a9a483643b8ac77a60097bd47383294:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/p7zip
 * [new ref]         734988334a9a483643b8ac77a60097bd47383294 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7349883 Fix wrapper to hide password from process history