Good luck to all the former FDB'ers.
This is why everything you build your own product on and that can't be replaced in a matter of hours by a competing product should come with source. Worst-case scenario, you fix the issue in source yourself.
1. the new owners aren't interested because they want to product to cannibalise for something else they're doing. Original product will never see the light of day again, no new bug fixes and possibly no more security patches.
2. the support contract cost is hiked up from maybe a few hundred dollars a year to several thousands
or the possibility of:
3. one or other of above but with the product's support staff reduced, dispersed or fired.
#1+3 above happened to us after Oracle bought out a bunch of stuff we relied on heavily for our hosting platform. Was a very painful time.