Two stars shown where there should only be one

[alex-w]

Original report: https://bugs.launchpad.net/stellarium/+bug/1655226

Original report by anonymous: https://sourceforge.net/p/stellarium/discussion/278769/thread/4b162039

Hi,
The star V400 Cep (HIP 1041, HD826) should only be one star, in one location, but, a lttile further over it is repeated. If you click on either, it says it's the same star, but the "second one" is in the wrong spot. (This is in the latest version, 0.15.1)
I noticed this when I was trying to add my own image for NGC40, (The bow-tie nebula, Caldwell2), and found this erroneous star where it didn't belong.
Can someone tell me how to delete this incorrect star? Seems it is embedded in the binary file, that can't be edited.
Thanks!
Also, I am happy to share my manually plate-solved NGC 40 image. (that took hours - longer than it took to get the image). It's not great, but still better than the empty space that was there, and I got the other stars to line up very well, doing it by trial-and-error (with much help from stellariumtextures).