$ git clone -n https://src.fedoraproject.org/rpms/python3-exiv2.git /var/lib/mock/f41-build-814047-148860/root/chroot_tmpdir/scmroot/python3-exiv2
Cloning into '/var/lib/mock/f41-build-814047-148860/root/chroot_tmpdir/scmroot/python3-exiv2'...
$ git fetch origin 96db06e4b6bce459b114c61fa73c9d7ae1ac66de:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python3-exiv2
 * [new ref]         96db06e4b6bce459b114c61fa73c9d7ae1ac66de -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 96db06e Fix source file