When a representation is opened from the explorer by clicking on it, it is opened and becomes the current selection.
This is also the case when it is opened from the "Representations" view.
However, when the same representation is re-opened by clicking on its tab (if it had been opened before), it becomes visible but is not actually selected:

The diffrerent scenarios should be more consistent and result in the same state whichever UI action was chosen to open the representation.