ISSUE #2192 - Fixed meshesToUpdate of undefined error (#2201)
ISSUE #2192 - Fixed meshesToUpdate of undefined error (#2201)

* ISSUE #2192 - Added waiting logic in tree sagas for it to be ready before doing stuff

* ISSUE #2192 - Fixed spelling for initialised
3drepo/3drepo.io,3drepo/3drepo.io,3drepo/3drepo.io,3drepo/3drepo.io,3drepo/3drepo.io,3drepo/3drepo.io