TYPO3 Core

I wrote an extension (extension A) which modifies, in its ext_tables.php, TCA of other extensions to add some columns. Those extensions are selected dynamically by TypoScript.

In case of "news" extension, its TCA is generally loaded before my extension, so there is no problem for modifying it.

However, in case of an custom extension (extension B), I don't know if this one is loaded before or after my extension A. If it's before, there is no problem by using :
\TYPO3\CMS\Core\Utility\ExtensionManagementUtility::addTCAcolumns(
$table,
$tempColumns
);

If it's loaded after, the TCA for $table is generally reset in extension B/Configuration/TCA/$table.php :
$GLOBALS['TCA'][$table] = array(...);

So $GLOBALS['TCA'][$table]['columns'], setted by extension A, is removed.

I would like to know if it's possible to provide a module which allows to set the order's extensions loading. Another solution would be to reinitialize GeneralUtility::loadTCA($table).

And I won't set 'dependencies' or 'suggest' in extension A, as it should be able to modify TCA's extensions of TER's extensions and customs ones and as I would like to publish extension A in TER.

Could be related to #36414.