What would a negative size attachment be?

[rokejulianlockhart.rymcmt (third="Beedell", first="Roke")]

0. [ ] Perhaps I should report this at https://bugzilla.mozilla.org/enter_bug.cgi#h=bugForm|Thunderbird as

   Negative attachment size allowed in “Share for files larger than”

[rokejulianlockhart.rymcmt (third="Beedell", first="Roke")]

@rokejulianlockhart.rymcmt

0. [ ] Perhaps I should report this at https://bugzilla.mozilla.org/enter_bug.cgi#h=bugForm|Thunderbird as

Negative attachment size allowed in “Share for files larger than”

1850281 - Negative attachment size allowed in “Share for files larger than”

Please https://bugzilla.mozilla.org/page.cgi?id=voting/user.html&bug_id=1850281#vote_1850281!