It would be great if files could be checked for the correct encoding (UTF-8) before importing them.
If the encoding is wrong it should spit out an error.
The current error in drush is: "Migration failed with source plugin exception: ID has no value"
Needs work
3.0
Code
The patch will have to be re-rolled with new suggestions/changes described in the comments in the issue.
The change is currently missing an automated test that fails when run with the original code, and succeeds when the bug has been fixed.
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