(U+6C14): Add `<-denotational@usage' for BUCS+6C23.
(UU+6C14): Unify MJ015011.
(U+6C17): Add `<-denotational@usage' for BUCS+6C23; apply new
conventions for glyph granularity.
(U+6C1B): Add `<-denotational@usage' for BUCS+6C1B; apply new
conventions for glyph granularity.
(U+6C23): Add `<-denotational@usage' for BUCS+6C23; apply new
conventions for glyph granularity.
(U-
00023C64): Apply new conventions for glyph granularity.
(U-
00023C66): Likewise.
(U+9FEB): New character.
(BUCS+6C23): New abstract node; unify A2-DJT-05947.
(BUCS+6C1B): New abstract node; unify A2-DJT-05941.