LWOInventoryComponent_Common::msgUpdateInventoryGroup (0x00c955b0) stores
the ADD's locked flag in the group; locked groups don't count toward the
50 user groups (msgGetInventoryGroupCount 0x00bde4b0 counts only unlocked
ones) and msgUpdateInventoryGroupContents (0x00ce1f50) applies the
1000-LOT cap only to unlocked groups. LoadFromSaveData (0x00d1ec40) reads
it from the grp element's u attribute. The server dropped the flag and
always saved u="0"; saves without u load as unlocked.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>