Prevent multiple connections between a single signal-slot pair
Review Request #119532 - Created July 29, 2014 and submitted
Multiple signal slot connections can cause wrong error message to be displayed
1) Click on any device in the places menu
2) Click cancel on the authentication dialogue
Error message: "An error occurred while accessing '$DISK_LABEL'..."
3) Click on the same device again
Error message: "An error occurred while accessing '$FIRST_ENTRY_IN_PANEL'..."
m_storageSetupInProgress is empty and therefore take returns 0.