I have a group called external for my different external hard drives and numcopies set to 2. I was trying to make sure that the external group itself had two copies of everything versus having one copy in the external group and one copy on my laptop. I tried and got:

$ git annex find --lackingcopies=external:1
git-annex: bad value for number of lacking copies

Am I missing something about the syntax?

git annex version: 10.20251215-132