$ git clone -n https://src.fedoraproject.org/rpms/fdupes.git /var/lib/mock/f45-build-8795-396/root/chroot_tmpdir/scmroot/fdupes
Cloning into '/var/lib/mock/f45-build-8795-396/root/chroot_tmpdir/scmroot/fdupes'...
$ git fetch origin b69dbc128344e88d296b4e67aa512fec57b98351:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fdupes
 * [new ref]         b69dbc128344e88d296b4e67aa512fec57b98351 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b69dbc1 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild