When typing a conversion, and the second unit is partially written (i.e. "10€ to ru..." the results are duplicated by several times. This behavior happens with different categories of units (lenght, currency, ...) and on different languages.
The problem is that a new result is being added not once for every matching unit, but once for every matching stringUnit, generating the duplicates.
This is my first attempt to build kde from source and commit the diff to phabricator, so please excuse any possible mistakes.