[6992] More strong checking to prevent stacking passive auras. This fix unexpected statking 16252 and ranks.

Also this checking will prevent staking talent ranks if it will casted at character by some reason in any cases.
TODO: non-talent passive spells like 16252 or 31785 with ranks still as before
not reapplied in lesser rank form if higher rank unlearned. But this possible only at .unlearn command use
and required re-loginning for activation lesser rank spell.

src/shared/revision_nr.h

@@ -1,4 +1,4 @@
 #ifndef __REVISION_NR_H__
 #define __REVISION_NR_H__
- #define REVISION_NR "6991"
+ #define REVISION_NR "6992"
 #endif // __REVISION_NR_H__