$ git clone -n https://src.fedoraproject.org/rpms/rust-version-sync.git /var/lib/mock/f45-build-46046-830/root/chroot_tmpdir/scmroot/rust-version-sync
Cloning into '/var/lib/mock/f45-build-46046-830/root/chroot_tmpdir/scmroot/rust-version-sync'...
$ git fetch origin 5a190059f845fdee4e96a7a9ab74119f0f356cb8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-version-sync
 * [new ref]         5a190059f845fdee4e96a7a9ab74119f0f356cb8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5a19005 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild