Issue initializing eox-map-compare using enabled

[santilland]

If i instantiate eox-map-compare with enabled set to "first" and afterwards set it to a falsy value, the synchronization of both contained maps does not work.
If on the other hand i instantiate the eox-map-compare with a flasy enabled value and afterwards set it to "first" the center and zoom configuration of the first map is somehow reset (to 0,0,0).

I imagine the second map is not rendered initially and the sync is somehow not activated, maybe when switching enabled it could check if the sync between maps is active?