$ git clone -n https://src.fedoraproject.org/rpms/thunderbird.git /var/lib/mock/f37-build-668850-74842/root/chroot_tmpdir/scmroot/thunderbird
Cloning into '/var/lib/mock/f37-build-668850-74842/root/chroot_tmpdir/scmroot/thunderbird'...
$ git reset --hard c2e5a6f36531f72cf17c224dc22699e8aeee16f8
HEAD is now at c2e5a6f Update to 102.3.1