$ git clone -n https://src.fedoraproject.org/rpms/rust-assert_matches.git /var/lib/mock/f40-build-2679607-67934/root/chroot_tmpdir/scmroot/rust-assert_matches
Cloning into '/var/lib/mock/f40-build-2679607-67934/root/chroot_tmpdir/scmroot/rust-assert_matches'...
$ git fetch origin a8e410ccb7388aaaff41107be44b27ac5daefe03:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-assert_matches
 * [new ref]         a8e410ccb7388aaaff41107be44b27ac5daefe03 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a8e410c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild