ZTF19abzzuin: AM CVn star fading tail + rebrightenings https://www.aavso.org/vsx/index.php?view=detail.top&oid=2225215 ZTF data of this object showed typical fading tail and rebrightenings. Most likely WZ Sge-type AM CVn outburst. See: https://ui.adsabs.harvard.edu/abs/2021PASJ..tmp...89K/abstract