$ git clone -n https://src.fedoraproject.org/rpms/gtkmm4.0.git /var/lib/mock/f38-build-side-42-init-devel-465525-23197/root/chroot_tmpdir/scmroot/gtkmm4.0
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-465525-23197/root/chroot_tmpdir/scmroot/gtkmm4.0'...
$ git reset --hard 14bea3fdb705ad2db5740521fabcb492ac82f8fc
HEAD is now at 14bea3f Update to 4.10.0