Hi Adrian,
> This fixed the bug for unstable, but the new upstream version won't be > acceptable for fixing the bug in stretch. > > Please make an additional upload to stretch only fixing #858633 > on top of 3.7.0.0+dfsg1-1 > > It is not possible: the error is only solved by updating the sources and changes the installation directory name. There is no upstream information on this error. Regards! I. De Marchi