Property error for U+2118?

[John O'Conner]

Is this an error or intentional change? I noticed that all other "SCRIPT
CAPITAL *" character values are in the "Lu" category. However, this
particular character has changed to "So" in the 3.0, 3.0.1, and 3.1 db.
Why? Why not the other SCRIPT CAPITAL * char values too?

2118;SCRIPT CAPITAL P;So;0;ON;;;;;N;SCRIPT P;;;;

Regards,
John O'Conner