Use a fast-promise approach (instead of ) when handling
mutation of domain objects, to ensure that mutation resolves
during the current tick. Needed for drag interactions of
WTD-931.
Fix an edge case in the mutation capability where model
data could be lost during a mutation; this supports
auto-mutate/persist functionality for representations,
which allows Layout editing (transitioned for WTD-535)
to be persisted thereby.
Add JSDoc for the domain object wrapper used to
expose a 'context' capability; part of
ongoing documentation to meet code standards in
platform/core in preparation for integration.
WTD-573.
