Make sure invalid images don't flood the log file

[nickvergessen]

Upstream 26963

[mention-bot]

@nickvergessen, thanks for your PR! By analyzing the history of the files in this pull request, we identified @tanghus, @Kondou-ger and @butonic to be potential reviewers.

[blizzz]

There was 1 failure:

1. OCA\Files_External\Tests\Storage\SmbTest::testNotifyGetChanges
   Failed asserting that an array contains OC\Files\Notify\RenameChange Object &00000000413754ab000000005176f3dc (
   'targetPath' => 'renamed.txt'
   'type' => 4
   'path' => 'newfile.txt'
   ).
   /drone/src/github.com/nextcloud/server/apps/files_external/tests/Storage/SmbTest.php:114
   FAILURES!
   Tests: 84, Assertions: 292, Failures: 1.

Does not seem related … but was this failing (sporadically) earlier?

[LukasReschke]

Does not seem related … but was this failing (sporadically) earlier?

@icewind1991 Any idea about this? :)

[icewind1991]

Any idea about this? :)

Ignore it for now, will see if I can make that test more reliable later