Could it be related to the failing test in CI?
(Mac Mavericks 10.9.2)

GLMUpdateMorphicTest>>testInvalidateSelection
(browser panes first port: #selection) value: 3.
entity removeLast.
announcer announce: GLMTestAnnouncement.
self assert: (browser panes first port: #selection) value isNil.
self assert: listMorph model selection isNil

When I run the glamour tests from the test runner, there
is one TestFailure. If I try to debug it, the debugger doesn't work
(shows only one pane)