Our first RV was an older Fleetwood Class A which had sustained water damage along the window in the over-cab bed area. Purchased from So Cal LaMesa RV and they had resealed the entire window area. Nobody thought about mold, then.
Generally used it for desert trips (single digit humidity) as week-end-warrior, boon-docking, windows wide-open (no internet) type camping.
Not an expert...however, in retrospect... residual beasties could possibly explain the ever-so-faint, earthy-odd interior odor we could never identify after squeeky cleaning refrig and holding tanks...
It's worth while to poke around the areas of the leak: check the wood for mold or fungus. You'll sleep easier!