Hot fix for speed issue

[v0.67.3] - 2024-01-13

Fixes for --checkpoint causing unnecessary slowdown.

Added

Removed

Changed

• osxphotos export --checkpoint no longer automatically checkpoints during export. See #1083.

Fixed

Contributors

• @RhetTbull @RhetTbull for code.
• @rajscode @rajscode for finding the issue with checkpoint.