OSV-2022-882 Use-of-uninitialized-value in SfxEntry::test_condition

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=51218 Crash type: Use-of-uninitialized-value Crash state: SfxEntry::testcondition SfxEntry::add AffixMgr::expandrootword...