forgejo/templates/repo/issue/search.tmpl

<form class="ui form ignore-dirty">
	<div class="ui search fluid action input">
		<input type="hidden" name="type" value="{{$.ViewType}}">
		<input type="hidden" name="state" value="{{$.State}}">
		<input type="hidden" name="labels" value="{{.SelectLabels}}">
		<input type="hidden" name="milestone" value="{{$.MilestoneID}}">
		<input type="hidden" name="project" value="{{$.ProjectID}}">
		<input type="hidden" name="assignee" value="{{$.AssigneeID}}">
		<input type="hidden" name="poster" value="{{$.PosterID}}">
		<input name="q" value="{{.Keyword}}" placeholder="{{.locale.Tr "explore.search"}}...">
		<button class="ui primary button" type="submit">{{.locale.Tr "explore.search"}}</button>
	</div>
</form>