Do not export tickets from the LSA if they contain NULL session keys. This is primarily to prevent unusable TGTs from being imported into the MIT Credential Cache To generate a diff of this commit: cvs diff -r5.95 -r5.96 krb5/src/lib/krb5/ccache/ChangeLog cvs diff -r5.8 -r5.9 krb5/src/lib/krb5/ccache/cc_mslsa.c