$ git clone -n https://src.fedoraproject.org/rpms/thunderbird.git /var/lib/mock/f38-build-700711-88277/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/f38-build-700711-88277/root/chroot_tmpdir/scmroot/thunderbird'...
$ git reset --hard 51af9834609f6f6e3c88612f743c08ec21ff7c78
HEAD is now at 51af983 Update to 102.8.0