ClusterPanel was not disabling itself for in-memory images. Bugfix to

FeatImage.fit (caused I think by a numpy bug).

fsl/data/featimage.py

@@ -286,8 +286,8 @@ class FEATImage(fslimage.Image):
         """
 
         if not fullmodel:
-            contrast  = np.array(contrast)
-            contrast /= np.sqrt((contrast ** 2).sum())
+            contrast = np.array(contrast)
+            contrast = contrast / np.sqrt((contrast ** 2).sum())
 
         x, y, z = xyz
         numEVs  = self.numEVs()

fsl/fsleyes/controls/clusterpanel.py

@@ -497,6 +497,7 @@ class ClusterPanel(fslpanel.FSLEyesPanel):
 
         # Overlay is in-memory
         if overlay.dataSource is None:
+            self.__disable(strings.messages[self, 'notFEAT'])
             return
         
         featDir = featresults.getAnalysisDir(overlay.dataSource)