Many commands (such as pijul patch) take a patch hash as an argument. These are a bit unwieldy for humans to deal with. In other VCSs, any unique prefix of a hash/ID is enough to identify a patch and this is an important part of the ergonomics of using them. Pijul should allow the user to specify the prefix of a patch hash as long as it's enough to uniquely identify the patch.
Referencing https://nest.pijul.com/pijul_org/pijul/discussions/358 as it is related.