Import custom data date fields only works in American (core fields import fine)

When you try to import contacts (for example) and have core and custom data date fields and select a date format for the import other than 'American' (mm-dd-yyyy) the core fields import fine but the custom data ones don't

It doesn't work even if your csv matches the format you have set your custom field to (although I don't think this should be relevant as you are describing the format of the csv not the civicrm field.

I have started trying to make sense of the code to see if I could patch it but got bewildered when I hit this piece of code: (import/parser/contact approx line 1641) since it seems to use a bunch of conditionals but do the same thing whatever the answer

if ( $dateType == 1 ) {
if ( strstr( $params[$dateParam], '-' ) )

{ $formatted[$dateParam] = CRM_Utils_Date::processDate( $params[$dateParam] ); }

else

{ $formatted[$dateParam] = CRM_Utils_Date::processDate( $params[$dateParam] ); }

} else

{ $formatted[$dateParam] = CRM_Utils_Date::processDate( $params[$dateParam] ); }

Side issues with date format in non-American are that it allows dd-mm-yyyy but not dd-mm-yy and also that it says it treats mm-dd-yyyy, dd/mm/yyyy and ddmmyyyy the same but says only dd-mm-yyyy and dd/mm/yyyy are treated the same (i.e implies it doesn't accept ddmmyyyy - I haven't managed to test this yet as my import is stalled on the above.