Fix reactions on code comments (#13390)

Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>

models/issue_comment.go

@@ -1111,6 +1111,10 @@ func fetchCodeCommentsByReview(e Engine, issue *Issue, currentUser *User, review
 			return nil, err
 		}
 
+		if err := comment.LoadReactions(issue.Repo); err != nil {
+			return nil, err
+		}
+
 		if re, ok := reviews[comment.ReviewID]; ok && re != nil {
 			// If the review is pending only the author can see the comments (except the review is set)
 			if review.ID == 0 {

templates/repo/diff/comments.tmpl

@@ -46,7 +46,7 @@
 						</div>
 					{{end}}
 				{{end}}
-				{{template "repo/issue/view_content/add_reaction" Dict "ctx" $ "ActionURL" (Printf "%s/comments/%d/reactions" $.root.RepoLink .ID) }}
+				{{template "repo/issue/view_content/add_reaction" Dict "ctx" $.root "ActionURL" (Printf "%s/comments/%d/reactions" $.root.RepoLink .ID) }}
 				{{template "repo/issue/view_content/context_menu" Dict "ctx" $.root "item" . "delete" true "diff" true "IsCommentPoster" (and $.root.IsSigned (eq $.root.SignedUserID .PosterID))}}
 			</div>
 		</div>
@@ -64,7 +64,7 @@
 		{{$reactions := .Reactions.GroupByType}}
 		{{if $reactions}}
 			<div class="ui attached segment reactions">
-			{{template "repo/issue/view_content/reactions" Dict "ctx" $ "ActionURL" (Printf "%s/comments/%d/reactions" $.root.RepoLink .ID) "Reactions" $reactions}}
+			{{template "repo/issue/view_content/reactions" Dict "ctx" $.root "ActionURL" (Printf "%s/comments/%d/reactions" $.root.RepoLink .ID) "Reactions" $reactions}}
 			</div>
 		{{end}}
 	</div>