My pug had a spacer that fitted in the non-drive-side dropout to make it the same length as the drive side one. The drive side had been shortened by use of a derailleur which fitted into the dropout. So - are you sure it isn't the other way around?
@provenrad started
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My pug had a spacer that fitted in the non-drive-side dropout to make it the same length as the drive side one.
The drive side had been shortened by use of a derailleur which fitted into the dropout.
So - are you sure it isn't the other way around?