Some applications set Postgres parameters using GUI(s) Once a value is set and deselected later, it issues a SQL ALTER SYSTEM set shared_preload_libraries = '';
Well, its their bug, not ours, given that we specify two valid ways to accomplish this goal. SET TO DEFAULT, and RESET.
Whether we want to apply the feature enhancement is another question but it probably wouldn't be back-patched nor make it in for another year and more. I'm also inclined to think that we are unlikely to change our minds.
