[BUGFIX] Restore FileInterface::setContents() TODO comments

Resolves: #103202
Releases: main, 12.4
Related: #40096
Change-Id: If64a5d16da9d500180d070b8d5f6a7fd96609010
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/83135
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: core-ci <typo3@b13.com>
Tested-by: Garvin Hicking <gh@faktor-e.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Andreas Kienast <a.fernandez@scripting-base.de>
Reviewed-by: Garvin Hicking <gh@faktor-e.de>
Tested-by: Andreas Kienast <a.fernandez@scripting-base.de>

typo3/sysext/core/Classes/Resource/FileInterface.php

@@ -96,8 +96,12 @@ public function getContents(): string;
     /**
      * Replace the current file contents with the given string.
      *
-     * @TODO : Consider to remove this function from the interface, as its
-     * @TODO : At the same time, it could be considered whether to make the whole
+     * @todo: Consider to remove this function from the interface, as its
+     *        implementation in FileInUse could cause unforseen side-effects by setting
+     *        contents on the original file instead of just on the Usage of the file.
+     * @todo: At the same time, it could be considered whether to make the whole
+     *        interface a read-only FileInterface, so that all file management and
+     *        modification functions are removed...
      * @return $this
      */
     public function setContents(string $contents): self;