Nice line involving rails and a left one- to two-finger pocket, finishing on a balancy right undercling and left move up to slopers and eventually, a rescue hold.
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.