$ git clone -n https://src.fedoraproject.org/rpms/rust-matchit0.8.git /var/lib/mock/f45-build-43136-800/root/chroot_tmpdir/scmroot/rust-matchit0.8
Cloning into '/var/lib/mock/f45-build-43136-800/root/chroot_tmpdir/scmroot/rust-matchit0.8'...
$ git fetch origin 53835ab8e5bffd4f23085fc10fd3f08f9331443f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-matchit0.8
 * [new ref]         53835ab8e5bffd4f23085fc10fd3f08f9331443f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 53835ab Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild