Problem on File Chooser Component

I got a problem to use the file chooser form element when the source file name contains a comma. (e.g. '1,2-dichlorocyclohexane.sdf')

Basically, it was pasred as two files in PLP, which caused 'file not found' error.

I had the same problem with PLP7.5 and PLP8.0.

Any suggestions will be appreciated.