I found out that newuser/files/Photos/Nextcloud Community.jpg has a size of zero bytes and it seems therefore he gets an internal server error when he first tries to log in. The second try then succseeds.
OCP\Lock\LockedException: “Photos/Nextcloud Community.jpg” is locked
/var/www/root/ncloud/lib/private/Files/View.php - line 2050:
OC\Files\View->lockPath("/florian/fi ... g", 1, false)
/var/www/root/ncloud/lib/private/Files/View.php - line 1140:
OC\Files\View->lockFile("/florian/fi ... g", 1)
/var/www/root/ncloud/lib/private/Files/View.php - line 595:
OC\Files\View->basicOperation("file_get_contents", "/florian/fi ... g", [ "read"])
/var/www/root/ncloud/lib/private/Files/Node/File.php - line 52:
OC\Files\View->file_get_contents("/florian/fi ... g")
/var/www/root/ncloud/apps/maps/lib/Service/PhotofilesService.php - line 447:
OC\Files\Node\File->getContent()
/var/www/root/ncloud/apps/maps/lib/Service/PhotofilesService.php - line 391:
OCA\Maps\Service\PhotofilesService->getExifPelBackup("*** sensiti ... *")
/var/www/root/ncloud/apps/maps/lib/Service/PhotofilesService.php - line 278:
OCA\Maps\Service\PhotofilesService->getExif("*** sensiti ... *")
/var/www/root/ncloud/apps/maps/lib/Service/PhotofilesService.php - line 83:
OCA\Maps\Service\PhotofilesService->safeAddPhoto("*** sensiti ... *", "*** sensiti ... *")
/var/www/root/ncloud/apps/maps/lib/Hooks/FileHooks.php - line 49:
OCA\Maps\Service\PhotofilesService->safeAddByFile("*** sensiti ... *")
and so on.
Andreas