Windows 10, Publisher 1.7.0.399 (also seen in .384)
When Publisher hangs, the save on close dialog box does not work as expected and results in loss of unsaved changes.
To reproduce:
First, cause the program to hang:
open a document or create a new one
create a table or select an existing one
triple-click to select the text in a filled cell
paste selection in another cell (pasting the end space character breaks the table as reported by others)
Second, attempt to close the program:
Right-click Publisher on the taskbar and select Close Window
Dialog box: "The document is about to close, would you like to save your changes? Yes, No, Cancel" - select Cancel
Publisher exits to desktop instead of returning to unsaved document
When Publisher is not hanging like in the steps above, the save on close dialog works as expected.