$ git clone -n https://src.fedoraproject.org/rpms/libmatroska.git /var/lib/mock/f41-build-826709-154928/root/chroot_tmpdir/scmroot/libmatroska
Cloning into '/var/lib/mock/f41-build-826709-154928/root/chroot_tmpdir/scmroot/libmatroska'...
$ git fetch origin 4ac89954f2bf9b2ca178330cb2932174f0749b1a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmatroska
 * [new ref]         4ac89954f2bf9b2ca178330cb2932174f0749b1a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ac8995 Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild