Fix map_right bug

[ansoncfit]

May relate to trunkLayer being shared between both maps. Should probably be separated to have a separate instance for each map.

[Xin-Zheng]

still NOT works! But when you press ctrl and + which change the size of viewport, the right map works. So interesting.

[Xin-Zheng]

Even there is no layer in right map, the problem still exist. So it is not a layer or loadservice issue.

[Xin-Zheng]

Actually, the original version (before I join this team) also has this issue!

[Xin-Zheng]

I think maybe leaflet does not allow two maps in one page. So tomorrow I will try to put all things in one map and use layer group to do show/hide.