We performed follow-up measurements of this object while it was still on the PCCP webpage.
Stacking of 7 unfiltered exposures, 24 seconds each, obtained remotely on 2020, April 15.4 from Q62 (iTelescope network) through a 0.50-m f/6.8 astrograph + CCD + focal reducer, shows that this object is a comet with a compact coma about 15" in diameter and a tail 20" long in PA 90.
MPEC 2020-H06, assigns the following very preliminary elliptical elements to comet P/2020 G1: T 2020 March 17.82; e= 0.87; Peri. = 208.93; q = 0.51; Incl.= 18.67
by Ernesto Guido & Adriano Valvasori