Howdy all! Finally getting around to fixing my window regulator door panel is off, window stopper pulled, and the clip that holds the white bit to the window is off. I don't want to manhandle the glass too much because it's glass, but it doesn't seem to be pulling. I'm assuming it's because the black knob that accepts the matal clip is still living inside the (broken) white plastic of the window regulator.Is it safe to push on the glass to get the black knob out of the white bit? Picture for clarity.