JSON field with a falsy value ( false , 0 ) disappears in the entry editor

JSON field with a falsy value ( false , 0 ) disappears in the entry editor: a task in MiMo-V2.6-RL-harbor-code: MiMo-V2.6-RL Code (Harbor) (Harbor dataset). I have a content type with a JSON field on it. When I save a falsy-but-valid JSON value to that field and reopen the entry in the content…

The task

I have a content type with a JSON field on it. When I save a falsy-but-valid JSON value to that field and reopen the entry in the content manager, the editor doesn't show the value I saved — it looks like a brand-new empty field.

Part of FineEnvs/MiMo-V2.6-RL-harbor-code.