CharSetAttr does {selected|token_id} not work?

For all the reasons I cannot use the !ammo any longer, I was hoping to use this. I set up a test that should subtract 1 from my selected token's r0_ammo attribute on making a ranged attack.  The macro works, minute this new addition. !modattr --silent --charid @{selected|token_id} --@{selected|r0_ammo}|-1 instead it tells me: Errors Invalid character id -Lis12pLUsT_Pxvge0CD. No target characters. You need to supply one of --all, --allgm, --sel, --allplayers, --charid, or --name.

So while obvious, it seems to only accept character_id for the -charid field, not token_id. 

Just use --sel instead of --charid then you don't need the @{selected|attribute} just --attribute|-1