[BUG] Let's bug the Guild - idRO issues

this thing better be implemented on other RO soon because there is an emergency call bug using this trick :

- let's say there is a guild 1 with guild master A and has emergency hall. Then A invited B and C.
- B and C delete the chars when they on guild 1 then remake chars with same name
- B and C create guild 2 and 3 then learn emergency call
- now when A using emergency call, B and C are recalled despite they're another guild master because their old chars are on guild 1. Then B and C can use emergency call too.

Thanks to Veemon for sharing this bug.