When uploading an asset which contains multiple dots in the filename the extension is being trimmed off incorrectly.

Reproduce

• Using a file with multiple dots config.modules.multisite.config.sites.travel.templates.availability.xml try and upload the file using the new dam app.
• Compare that to uploading the same file using the compatibility assets app.

Actual
When uploading the example file the name is trimmed using the second to that last dot instead of the last dot. See in the screen shot the segment "availability" is now missing.

The problem can also been seen from the browser view

Expected
When uploading the asset the filename should be preserved