What's Changed
* BLD: typing_extensions needs NotRequired (new 4.0.0) by maffettone in https://github.com/bluesky/bluesky/pull/1635
* Add prepare command to RunEngine and bundler, as well as protocol by rosesyrett in https://github.com/bluesky/bluesky/pull/1639
* DOC: Fixed examples in debugging docs by DominicOram in https://github.com/bluesky/bluesky/pull/1500
* Add delay to plan_args of count plan by DiamondJoseph in https://github.com/bluesky/bluesky/pull/1655
* Remove empty complete method from RunBundler by rosesyrett in https://github.com/bluesky/bluesky/pull/1644
* FIX: handle case of rewinding to before the beginning of a stream by tacaswell in https://github.com/bluesky/bluesky/pull/1648
* Added release notes for v1.13.0a1 by coretl in https://github.com/bluesky/bluesky/pull/1657
* Pass `md_validator` a deep copy that it can normalize by jmaruland in https://github.com/bluesky/bluesky/pull/1661
* Release notes for 1.13.0a2 by danielballan in https://github.com/bluesky/bluesky/pull/1669
* Fix Test Cases for "Enable collect for multiple detectors" (1651) by abbiemery in https://github.com/bluesky/bluesky/pull/1668
* Enable collect for multiple detectors by abbiemery in https://github.com/bluesky/bluesky/pull/1651