shouldnt sle(s) based packages on 15.3 be not handled via a sp3 named directory instead of sp2?

hi there, === ( 5/72) Installing: libcurl-devel-7.66.0-4.17.1.x86_64 ................................................................................................................................................................[done] Additional rpm output: warning: /var/cache/zypp/packages/repo-sle-update/sle-sp2/x86_64/libcurl-devel-7.66.0-4.17.1.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 39db7c82: NOKEY ( 6/72) Installing: libcurl4-32bit-7.66.0-4.17.1.x86_64 ...............................................................................................................................................................[done] Additional rpm output: warning: /var/cache/zypp/packages/repo-sle-update/sle-sp2/x86_64/libcurl4-32bit-7.66.0-4.17.1.x86_64.rpm: Header V3 RSA/SHA256 Signature, key ID 39db7c82: NOKEY === this is happening inside a zypper up on a current leap 15.3 today. shouldnt that var cache directory be named sle-sp3 (which also exists in that folder structures already) and instead? is my understanding of what leap 15.3 and suse linux enterprise 15 sp2 and sp3 are, wrong? ty.