PHP Warning: Array to string conversion on class-wp-scripts.php

I accidentally created a duplicate issue, which I’ve closed, but here’s more info from my topic. (It’s nothing to do with a particular config, so a report wouldn’t help.)

In PostmanSuggestProSocket.php there’s this:

$pluginData = apply_filters( 'postman_get_plugin_metadata', null );

wp_register_script( 'postman-suggest-pro-sockets', POST_SMTP_ASSETS . 'js/postman-suggest.js', array( 'jquery' ), $pluginData, true );

$pluginData is an array (with name and version fields). It should be passing just the version field to the register call, but it’s passing the whole thing. If other plugins try to read the version on the enqueue, they’ll be expecting a string.

(In my case, I’m using the simple Rebusted plugin, which appends the filemod date to the version string, and this causes an array to string conversion warning.)