$ git clone -n https://src.fedoraproject.org/rpms/gtkmm4.0.git /var/lib/mock/f40-build-741750-110268/root/chroot_tmpdir/scmroot/gtkmm4.0
Cloning into '/var/lib/mock/f40-build-741750-110268/root/chroot_tmpdir/scmroot/gtkmm4.0'...
$ git reset --hard 9b995f7d82ab7d11ced47ce245dfe9ebd5a30e54
HEAD is now at 9b995f7 Update to 4.13.1