I tried to move en:File:Arbeiderpartiet 2008 results.svg to Commons using the FileExporter/FileImporter beta feature. The preview page opened fine, but when I tried to import the file it generated an error:
Internal error [XGwgcApAMFAAAEfEWo0AAACV] 2019-02-19 15:27:46: Fatal exception of type "RuntimeException"
Steps to reproduce:
- Enable the FileExporter beta feature on enwiki
- Navigate to https://en.wikipedia.org/wiki/File:Arbeiderpartiet_2008_results.svg
- Click the "Export to Wikimedia Commons" button (sometimes in the More dropdown in Vector)
- Click "Import" at the bottom of the page that opens (Special:ImportFile)
- Observe the error
I have not been able to reproduce this error outside of this file, but it occurred multiple times with this file.