$ git clone -n https://src.fedoraproject.org/rpms/rust-minspan.git /var/lib/mock/f45-build-43277-801/root/chroot_tmpdir/scmroot/rust-minspan
Cloning into '/var/lib/mock/f45-build-43277-801/root/chroot_tmpdir/scmroot/rust-minspan'...
$ git fetch origin 4716af776d7c576b16378a8ccd73463f5e4c6e8a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-minspan
 * [new ref]         4716af776d7c576b16378a8ccd73463f5e4c6e8a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4716af7 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild