tree 1a6b635fecb1f097e391d72a97322ae5f135ccb2
parent 3f23702d07410801b0e54c707b7eb562b2c414a3
author ihsinme <ihsinme@gmail.com> 1614583874 +0000
committer ihsinme <ihsinme@gmail.com> 1614583874 +0000

I believe your checks are not correct.
in my opinion they are equivalent to checks !=.
I suggest a simple fix.
only fix!