FWIW I found that the outside part of that clip is more important than the inside part. I broke a couple and used the broken outside parts [ that get the screw] to snap the trim over. It is hard to get the trim off the inside part without breaking it. Gluing them back together only worked on one. The pillar molding tends to support the inside without the broken inside part of the clip. But the outside definitely needs to be in place to hold the molding up.
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