[opensuse-packaging] SLE_12_SP4 on build.opensuse.org

Hello! Have noticed SLE_12_SP4 repo is available on build.opensuse.org. 1) suse.com official site knows nothing about SLE12SP4, only SLE12SP3 and SLE15: SLE12SP3: [0] https://www.suse.com/releasenotes/x86_64/SUSE-SLES/12-SP3/ SLE15: [1] https://www.suse.com/releasenotes/x86_64/SUSE-SLES/15/ 2) openSUSE branch (%{SLE_VERSION}+30.%{SERVICE_PACK_VERSION} mechanism) also knows nothing about openSUSE Leap 42.4, only openSUSE 42.3 and openSUSE 15 respectively. Who knows details, please, if I missed something? Thanks!