Each time a previously saved world document is opened the text entry split resizes smaller. This is a new problem in 1.4.2 and seems related to the changes made for the new disconnect/reconnect UI.

Repeatedly opening and closing the document causes the text entry height to bounce around between 1.5 and 3 lines high. Manually resizing the text entry split to about 6 lines and saving demonstrates the problem on the next close/open cycle.