The character U+00a0 is invisible. #64
Description
With the external template, if an entry terminates with "U+00a0" (invisible space), e.g., "440U+00a0" then we get the error "error: "Could not map 440". This is confusing because we cannot actually see the invisible space in phenoboard (one needs to inspect the file in VS Code). Also, the commands to sanitize the string or remove white space do not work here.
Apparently, sometimes Excel files contain this character for whatever reason. See WIP for COPZ1