Fix wrong text getting saved on editing second comment on an issue. (#5608)

* comments: Fix an incorrent DOM element selection.

This commit fixes a bug that was causing text from previously edited
comment to get saved when two comments were edited one after other.
Text area with id of `#content` isn't unique on the page but it was
being treated as unique by the event handling code.

Fixes: #5581.

* templates: Remove `id` from textarea in commit edit form.

An element is assigned an `id` only if it is unique for the whole page
but in this case there can be multiple textarea so it should have one.

public/js/index.js

@@ -690,7 +690,7 @@ function initRepository() {
             // Setup new form
             if ($editContentZone.html().length == 0) {
                 $editContentZone.html($('#edit-content-form').html());
-                $textarea = $('#content');
+                $textarea = $editContentZone.find('textarea');
                 issuesTribute.attach($textarea.get());
                 emojiTribute.attach($textarea.get());
 

templates/repo/diff/box.tmpl

@@ -204,7 +204,7 @@
 				<a class="preview item" data-url="{{AppSubUrl}}/api/v1/markdown" data-context="{{$.RepoLink}}">{{$.i18n.Tr "preview"}}</a>
 			</div>
 			<div class="ui bottom attached active write tab segment">
-				<textarea tabindex="1" id="content" name="content"></textarea>
+				<textarea tabindex="1" name="content"></textarea>
 			</div>
 			<div class="ui bottom attached tab preview segment markdown">
 			{{$.i18n.Tr "loading"}}

templates/repo/issue/view_content.tmpl

@@ -115,7 +115,7 @@
 			<a class="preview item" data-url="{{AppSubUrl}}/api/v1/markdown" data-context="{{$.RepoLink}}">{{$.i18n.Tr "preview"}}</a>
 		</div>
 		<div class="ui bottom attached active write tab segment">
-			<textarea tabindex="1" id="content" name="content"></textarea>
+			<textarea tabindex="1" name="content"></textarea>
 		</div>
 		<div class="ui bottom attached tab preview segment markdown">
 			{{$.i18n.Tr "loading"}}