Cristian Nicolescu

Giving this literally one more second of thought would have made me realize that this obviously happens because a column is defined twice, see: df

 updated cq 2 weeks ago I think. But I have had this issue in all versions of the package!

Taking the OS dependent stuff back: this is happening on the windows PCs at WZB as well, will send version of cq there soon

Very sorry for the late reply: On mac both cran and dev the (newest) versions still have the bug, will update on windows asap