Links to the new issue and new pull request pages can preselect sidebar
values with the same query parameters as the issue list filters:
`labels`, `milestone`, `project` and `assignee`, each taking
comma-separated IDs, e.g. `compare/main...branch?labels=1,2&assignee=3`.
Previously, pull requests supported none of them and issues only
`milestone` and `project`. On the compare page they also expand the new
pull request form, like `title` and `body`. Query values take precedence
over issue template labels and assignees.
* Fix https://github.com/go-gitea/gitea/issues/27341
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Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
