$ git clone -n https://src.fedoraproject.org/rpms/mdevctl.git /var/lib/mock/f45-build-18185-510/root/chroot_tmpdir/scmroot/mdevctl
Cloning into '/var/lib/mock/f45-build-18185-510/root/chroot_tmpdir/scmroot/mdevctl'...
$ git fetch origin ed15e3841f935e1ac1229c7661c66dcc6bb2a4d8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mdevctl
 * [new ref]         ed15e3841f935e1ac1229c7661c66dcc6bb2a4d8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ed15e38 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild