$ git clone -n https://src.fedoraproject.org/rpms/openjpeg2.git /var/lib/mock/f31-build-49563-27312/root/chroot_tmpdir/scmroot/openjpeg2
Cloning into '/var/lib/mock/f31-build-49563-27312/root/chroot_tmpdir/scmroot/openjpeg2'...
$ git reset --hard 42cf4df6b105356e63eb47c030cbba824e2fc9a3
HEAD is now at 42cf4df Update to 2.3.1