V5668 Sgr AAVSO light curve. Marked are the three major light curve stages observable in the figure, i.e. the flat-top-jitters, the deep dust-dip and the cusp shaped features seen on the rise out of the dust-dip. Marked are the times of polarimetric observations of the nova by both the Muneer et al. (2015) team and those presented in this paper, i.e. the Dipol-2 measurements. The y-axis demonstrates the change in visual magnitude whereas the x-axis contains theJulian date on the bottom and days since discovery on the top.