In 1910 an experiment with an eclipse on Jupiter proved Einstein's prediction of gravitational lensing. It is now known that the experiment was, in fact, fatally flawed - and proved nothing whatsoever. How has the 'scientific fact' of that experiment (or the idea that such an experiment can be used to test the theory) not 'expired' ?  It wasn't interpretation that changed - we learned more and realized the entire mechanism being used to try and do the experiment was never a valid test.

PS. Later experiments, without those glaring mistakes, did however confirm gravitational lensing so the theory is intact, but the experiment that seemed to confirm it in 1910 (and made Einstein a celebrity scientist) did nothing of the kind. It was, in fact, a huge waste of money on an experiment that was designed in a fatally flawed way.