Merge PR to fix {title} is not working on -save-as

Reported again recently: https://community.aseprite.org/t/cli-filename-format-doesnt-work/16491
Reported before: https://github.com/aseprite/aseprite/issues/2442
And PR to fix this issue: https://github.com/aseprite/aseprite/pull/2510 (the PR was closed automatically when we deleted the `master` branch, but the PR should be reviewed & merged if it's possible).

