$ git clone -n https://src.fedoraproject.org/rpms/xreader.git /var/lib/mock/f45-build-39116-732/root/chroot_tmpdir/scmroot/xreader
Cloning into '/var/lib/mock/f45-build-39116-732/root/chroot_tmpdir/scmroot/xreader'...
$ git fetch origin 41fabe28f2571c84c7aa28d086fb07fbc94c12fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xreader
 * [new ref]         41fabe28f2571c84c7aa28d086fb07fbc94c12fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 41fabe2 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild