$ git clone -n https://src.fedoraproject.org/rpms/fcft.git /var/lib/mock/f45-build-8724-394/root/chroot_tmpdir/scmroot/fcft
Cloning into '/var/lib/mock/f45-build-8724-394/root/chroot_tmpdir/scmroot/fcft'...
$ git fetch origin b2b9ebe8cc6287c5e8f49b40b4b24bdef466e1ba:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fcft
 * [new ref]         b2b9ebe8cc6287c5e8f49b40b4b24bdef466e1ba -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b2b9ebe Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild