Avoiding openField on resumeStack

[David Epstein]

MC 2.2 on Mac OSX 10.4.

While observing the message watcher, I click on the titleBar of a (not
frontmost) stack that contains an unlocked field.  The message watcher
shows these two messages:

resumeStack
openField

and the unlocked field gets a blinking insertion point.

How can I suppress this behavior?  I only want an insertion point if
the user clicks on the unlocked field itself, not if he simply brings
the stack to the front.

Many thanks.

David Epstein