BETA: Fixed a bug in `ToIVortex` after first teleport it was not possible to teleport again on same floor.

Reported by: pandragon
Reviewed by: pandragon, St3eT
Tested by: pandragon

git-svn-id: https://svn.l2jdp.com/branches/unstable/L2J_DataPack_BETA@10266 5288da4f-0efc-0310-bd40-8d490a2659fa
Merge remote-tracking branch 'git-svn' of ../../L2j-svn/L2J_DataPack_BETA into svn