[• If you don't already use that tag, tag a book with 'Apol'.]
• Tag a[nother] book with 'Apol' and hit Enter.
>> The resulting tag shows up as 'apol'.
I shouldn't have to go to the extra trouble of selecting the correct tag in the list just because someone else has chosen to use the same tag but without a capital letter. My own tags should be chosen before others', and an exact match before an inexact, so that Enter gives the expected result, and not something I've never used and have no intention of ever using.