[cwconfig] absolute import (closes #2091068)

[schema sync] Update repo._type_source_cache when renaming an entity (closes #2094470) When an entity type is renamed as part of a migration, it leaves stale entries in repo._type_source_cache, which makes subsequent operations on those entities fail (they look for the old entity name instead of the new one).

[facets] forcing a fixed height to the group is a bad idea: the container will not properly overflow