Check this svreenshot:

http://i238.photobucket.com/albums/ff11/lienn_stuff/bug0002.jpg

If you stop at marked area, you will also appear at stairs at map change (when you are going down to lower decks map)

Platform: PC
ISP: BrTurbo
Type of Internet Connection: ADSL
Internet Connection Speed: 2MB
Date & Time: -
Frequency: always
Character Name: Lienn Deleene
Race: Miqo'te soS F
World: Istory
Class/Skill Rank: -
Physical Level: 50
Area and Coordinates: Limsa Lominsa adventurer guild
Party or Solo: -
NPC Name: -
Monster Name: -
In-Game Time: -
Steps:
1: Place a character at marked area (that miqo'te sitting there is at exact place)
2: With another character, target the placed character.
3: Walk to lower map by the stairs that pass behind guildleve corner (as if you were headed to chocobo stables). When you reach the map zone, the targeted character will also appear at stairs, being then in 2 places at same time.