Saving metadata with "safe-and-new"-button results gives an exception

[neufeind]

\Exception('I could not find a valid file identifier', 1392926871);

That's because "safe-and-new" will create a new filemetadata-record but there is no "file" yet set.

[justb3a]

Have a look here.

• the issue is present on TYPO3 6.2.17 but not on 7.6.x
• solution for TYPO3 <= 6.2.17, add the following to your UserTSConfig:

options.saveDocNew.sys_file = 0
options.saveDocNew.sys_file_metadata = 0
options.disableDelete.sys_file = 1

• should be fixed in next release