Obligatory I am not a lawyer, but in my reading of the applicable statute, the indictment can be refiled within 6 months of the dismissal, and not an additional 6 months after the statute of limitations expires. While this might seem similar to what the other posters said, this allows prosecutors to prepare on a much longer timescale (6 months vs the ~week they had for the original indictment after Trump fired the AG for the District) AND also allows them to continue to refile even if the indictment is dismissed again (e.g., their incompetence results in another dismissal).

How do you do that? Edit: user error; go to Settings->Other->Share links and select local to get previous behavior