{title} and {name} not working properly #2442

I'm trying to use Aseprite CLI like this:

ASEPRITE_PATH -b ASSETS_SRC_PATH/*.* --save-as ASSETS_OUT_PATH/{title}.png`

Expected result: asset.aseprite -> asset.png

Actual result: asset.aseprite -> {title}.png

Also, it seems like it duplicates parts of filename. For example, I've tried this format: a-{title}-b.png

Expected result: asset.aseprite -> a-asset-b.png

Actual result: asset.aseprite -> a-a-{title}-b-b.png

Aseprite and System version

• Aseprite version: 1.2.20 / Steam
• System: macOS Catalina 10.15.4