django - Inline Formset Foreign Key as text Field -

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i need similar following question; how create inline formset reverse foreign key relationship

although there solution on not work me.

when implement solution relatedobjectdoesnotexist error , save method runs infinite loop.

here code; https://dpaste.de/gkcy#l65,78,79,86,94

i have highlighted code receive errors.

can please, has been bothering me many days , yes, new :(


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