Placeholder for various timing and design issues:

Some symptoms:

• PCFT#addPage would fail to hit the Add page action
  —hitting actions was recently based off mouse-position clicks; however captured position may be unreliable if a CSS transition is ongoing. 
• PCFT#editPage would silently fail to select a row, consequently failing on unexpected action availability
  —presumably a vaadin-wait would be in order, tentatively abstracting the mechanism away behind WebDriver|Element interaction.
• ContentAppTest#publish would fail to assert "not published" status, due to discrepancy in labeling this status between M5 (Not published) vs. M6 (Unpublished), and overlapping presence of both Pages apps, undistinguished, in the test-webapp.

Some design issues:

• ContentApp holding selectors for two Grid-related locators (activation status, marked-as-deleted indicators)
• Button usage passing WebElement references around, instead of encapsulating #click