Texture Problem

Hey ! , recently i discovered a little..Buggy..Thing... in 1.13.2 java edition.
SO ! yeah the bug is , When you place a snow (Next to) a fence or glass pane or an iron bars 
the snow will place normally on the block you have chosen BUT ! it will also be placed on the fence,glass pane ,iron bars block ! which it must be possible ! SOOO i hope you fix that , this is a video for the bug , sorry my computer is bad and i can't download a screen recorder...