Detect truncated utf-8 characters at the end of content as still representing utf-8 (#19773)#19774

lunny merged 1 commit intogo-gitea:release/v1.16go-gitea/gitea:release/v1.16from

zeripath:backport-19773-v1.16zeripath/gitea:backport-19773-v1.16Copy head branch name to clipboard