i said that's her lucky outfit lol.I think some of the confusion around Cersei is that she appears to be wearing the same clothes when she was crowned as she was the day of the trial, tho I didn't rewatch to verify, making it seem like it transpired all in the span of less than one day. Then it shifted to Danys leaving with which had to be several weeks in the making.
I can't see the city coming together that quickly for Cersei's ceremony, either. There would have been confusion after the blast, people grieving for loved ones, trying to figure out what happened, etc.
she wore it again.
that's her easter dress .