In form dynamic attribute is auto updating issue

[K_India]

the issue is when I hit update button on form it updates some attribute automatically . even I don't touch that attribute on form while updating.

here I only updated comment field then too supervisor field automatically updated.

any solution to this issue is highly appreciated 

[rushikeshvartak]

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[K_India]

Thanks for your response Rushikesh.
somehow it is now resolved.

Thanks for your help!