Squish: Fix hack for tests opening multiple files

Change-Id: I35ff3e1cf99a8e5f171f0728f05a3b828da78293
Reviewed-by: Christian Stenger <christian.stenger@digia.com>

tests/system/shared/utils.py

@@ -263,6 +263,8 @@ def selectFromFileDialog(fileName, waitForFile=False):
             replaceEditorContent(pathLine, fName)
             clickButton(waitForObject("{text='Open' type='QPushButton'}"))
         except:
+            nativeType("<Ctrl+a>")
+            nativeType("<Delete>")
             nativeType(pName + fName)
             snooze(1)
             nativeType("<Return>")