Индивидуальный предприниматель заключил договор

An individual entrepreneur entered into a contract of carriage with MUE "Auto Farm".
In connection with the improper fulfillment of obligations under the contract, the entrepreneur sued the municipal unitary enterprise for the recovery of funds.
During the court hearing, the arbitration court found that MUE "Auto Farm" five months ago was reorganized into GUP "Avtokolonna No. 6". After establishing this circumstance, the arbitral tribunal replaced the improper party.
Did the arbitration court do the right thing?
What is the difference between the replacement of the inappropriate party from the entry into the successor process?

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