Charge in consistency between the files in gromacs_solvated.tar.gz and gromacs.tar.gz

[dingye18]

I just found that that atomic charges of part of the molecules are different in gromacs_solvated.tar.gz and gromacs.tar.gz.
Such as the mobley_820789, the atomic charges in gromacs/mobley_820789.top are:

While in gromacs_solvated/mobley_820789.top:

That's quite different. And only the parameters in gromacs/mobley_820789.top can reproduce the result in literature.
Openff-toolkit was used to regenerate the atomic charges of mobley_820789 with gaff-1.8, and the regenerated charges were consistent with the content in gromacs/mobley_820789.top.

How did the charges in gromacs_solvated generated? And was it processed after gaff-1.7?