[1.1] Wrongly placed slurs after importing a MusicXML file

The attached MusicXML file contains two voices, each starting with a rest and two eighth notes which are paired two by two with a slur. The slurs should start a the C and end on the F. However, both slurs start at the low C and ends on the correct F.
After exporting this example back to MusicXML it is found both slurs start indeed on the same note.