Clear clusters on workspace load. So clustered pins disappear on workspace change.
Clear clusters on workspace load. So clustered pins disappear on workspace change.

[Delivers #71397370]

TeamUDS/lumify,TeamUDS/lumify,j-bernardo/lumify,bings/lumify,dvdnglnd/lumify,TeamUDS/lumify,j-bernardo/lumify,RavenB/lumify,TeamUDS/lumify,bings/lumify,Steimel/lumify,lumifyio/lumify,RavenB/lumify,Steimel/lumify,lumifyio/lumify,TeamUDS/lumify,RavenB/lumify,bings/lumify,lumifyio/lumify,Steimel/lumify,j-bernardo/lumify,dvdnglnd/lumify,RavenB/lumify,bings/lumify,Steimel/lumify,dvdnglnd/lumify,dvdnglnd/lumify,bings/lumify,dvdnglnd/lumify,lumifyio/lumify,Steimel/lumify,j-bernardo/lumify,RavenB/lumify,j-bernardo/lumify,lumifyio/lumify