I edited the body and tags of this question. After I saved my changes, I realized that I forgot to add an Edit Summary. Since I was within the 5 minutes grace period, I just went back to the question, clicked on edit, added my summary and saved it.
But my summary wasn't saved for some reason. I repeated the steps just to be sure - with no success.
Can anyone reproduce this or am I the only one seeing this?
Why are later added Edit Summaries not saved?