do not unset type of immediate pane when evaluator comes from a plugin

package.json

@@ -88,7 +88,7 @@
         "c9.ide.format": "#b0bb91a623",
         "c9.ide.help.support": "#e95f98f87c",
         "c9.ide.imgeditor": "#66a9733dc1",
-        "c9.ide.immediate": "#acb30299df",
+        "c9.ide.immediate": "#2ef20acbcc",
         "c9.ide.installer": "#0fde9f0067",
         "c9.ide.mount": "#292b312b4b",
         "c9.ide.navigate": "#c191d9b92f",