@LeadedSolder "... I first did a dry fit. Then I marked the orientation, applied a generous slathering of model glue to both sides, and put them back in place with the position markings lined up. This is much better than my usual tactic, which is to get both sides wet with glue and then forget exactly what orientation everything is in, then panic."

This has previously been my usual tactic, too, and yours sounds so much better.