./standard/ietf/DRAFT hasn't been updated for 7 years and contains at least one module that can conflict with ./experimental/ietf-extracted-YANG-modules.
% find . \( -name ietf-crypto-types*.yang -o -name ietf-tcp-client*.yang -o \
-name ietf-tcp-server*.yang -o -name ietf-tls-client*.yang -o -name ietf-tls-server*.yang \)
./experimental/ietf-extracted-YANG-modules/ietf-tls-server@2023-04-17.yang
./experimental/ietf-extracted-YANG-modules/ietf-tcp-server@2023-04-17.yang
./experimental/ietf-extracted-YANG-modules/ietf-tls-client@2023-04-17.yang
./experimental/ietf-extracted-YANG-modules/ietf-tcp-client@2023-04-17.yang
./experimental/ietf-extracted-YANG-modules/ietf-crypto-types@2023-04-17.yang
./standard/ietf/DRAFT/ietf-tls-server.yang
The latter file is @2015-10-09, which means that it's necessary to search ./experimental before ./standard/ietf, whereas I think it might be better to search ./standard/ietf first.
Anyway I suggest that ./standard/ietf/DRAFT be emptied or deleted. Possibly it would make sense for some or all of ./experimental/ietf-extracted-YANG-modules to live there?