$ git clone -n https://src.fedoraproject.org/rpms/mingw-rest.git /var/lib/mock/f45-build-18818-530/root/chroot_tmpdir/scmroot/mingw-rest
Cloning into '/var/lib/mock/f45-build-18818-530/root/chroot_tmpdir/scmroot/mingw-rest'...
$ git fetch origin 3c81a62ae44833aaebb9f9bda63467299d7c898a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/mingw-rest
 * [new ref]         3c81a62ae44833aaebb9f9bda63467299d7c898a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3c81a62 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild