Prevent messages from other modules not being replaced
>>> [!note] Migrated issue
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<!-- Migrated from issue #3468931. -->
Reported by: [abarrio](https://www.drupal.org/user/3349962)
Related to !81
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Messenger service messages from other modules are being replaced when sending them using InsertCommand and method prepend on other modules.<br>
On this code from frontend_editing.module method prepend is changed to replaceWith</p>
<div class="codeblock">
<pre><span style="color: #000000"><span style="color: #0000BB"><?php<br></span><span style="color: #FF8000">/**<br> * Implements hook_ajax_render_alter().<br> */<br></span><span style="color: #007700">function </span><span style="color: #0000BB">frontend_editing_ajax_render_alter</span><span style="color: #007700">(array &</span><span style="color: #0000BB">$data</span><span style="color: #007700">) {<br> foreach (</span><span style="color: #0000BB">$data </span><span style="color: #007700">as &</span><span style="color: #0000BB">$command</span><span style="color: #007700">) {<br> if (</span><span style="color: #0000BB">$command</span><span style="color: #007700">[</span><span style="color: #DD0000">'command'</span><span style="color: #007700">] == </span><span style="color: #DD0000">'insert' </span><span style="color: #007700">&& </span><span style="color: #0000BB">$command</span><span style="color: #007700">[</span><span style="color: #DD0000">'method'</span><span style="color: #007700">] == </span><span style="color: #DD0000">'prepend'</span><span style="color: #007700">) {<br> if (</span><span style="color: #0000BB">strpos</span><span style="color: #007700">((string) </span><span style="color: #0000BB">$command</span><span style="color: #007700">[</span><span style="color: #DD0000">'data'</span><span style="color: #007700">], </span><span style="color: #DD0000">'data-drupal-messages'</span><span style="color: #007700">)) {<br> </span><span style="color: #0000BB">$command</span><span style="color: #007700">[</span><span style="color: #DD0000">'selector'</span><span style="color: #007700">] = </span><span style="color: #DD0000">'[data-drupal-messages], [data-drupal-messages-fallback]'</span><span style="color: #007700">;<br> </span><span style="color: #0000BB">$command</span><span style="color: #007700">[</span><span style="color: #DD0000">'method'</span><span style="color: #007700">] = </span><span style="color: #DD0000">'replaceWith'</span><span style="color: #007700">;<br> }<br> }<br> }<br>}<br></span><span style="color: #0000BB">?></span></span></pre></div>
<p>Everytime a module send a messenger using insert command is replaced for the last one.</p>
<h4 id="summary-steps-reproduce">Steps to reproduce</h4>
<ul>
<li>Install together fronted_editing and content_lock.</li>
<li>Create a page and edit it on two tabs to block it.</li>
<li>Provoke an error on form validation</li>
<li>You will see how lock message is replacing validation error.</li>
</ul>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>Check the path of ajax to see if it is from frontend_editing.</p>
issue