$ git clone -n https://src.fedoraproject.org/rpms/patool.git /var/lib/mock/f45-build-21438-584/root/chroot_tmpdir/scmroot/patool
Cloning into '/var/lib/mock/f45-build-21438-584/root/chroot_tmpdir/scmroot/patool'...
$ git fetch origin b71c0645e2bdc2a0ed2161bfbe6ba2ba4e5d342d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/patool
 * [new ref]         b71c0645e2bdc2a0ed2161bfbe6ba2ba4e5d342d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b71c064 Bump to 4.1.0 (rhbz#2421500 and rhbz#2508373)