$ git clone -n https://src.fedoraproject.org/rpms/python-mercantile.git /var/lib/mock/f45-build-31509-652/root/chroot_tmpdir/scmroot/python-mercantile
Cloning into '/var/lib/mock/f45-build-31509-652/root/chroot_tmpdir/scmroot/python-mercantile'...
$ git fetch origin e60cde6e53c24138422bdbec9264661b576cbfcd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mercantile
 * [new ref]         e60cde6e53c24138422bdbec9264661b576cbfcd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e60cde6 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild