I had a bunch just like that.
What worked for me was to just go around the board and desolder all the pins in the usual way - whatever works for you, I use chemwik desolder braid. Then go back to each pin individually, stick a flat bladed screwdriver between the can and the board, heat that pin again until it just melts, take the iron off and slowly twist/level up the screwdriver just a little as the solder is freezing - the idea is to still have the board moving over the pin as the solder freezes. Go around the whole thing pin by pin. At the end you should have all the pins free and can just work around all the pins with the screwdriver levering each pin out a little, going on to the next pin, doing the same and just working around until the board comes off. If any individual pin doesn't want to move, just repeat the heat and lever while freezing bit again.
I got a 100% successful recovery rate on the 4 I did. All working, all within manufacturer's specifications. Just required a little patience. Take your time, don't force anything.