Reset CU-UP E1 UE contexts after E1 Setup Response
38.463 sec. 8.2.3 says > This procedure also re-initialises the E1AP UE-related contexts (if > any) and erases all related signalling connections in the two nodes like > a Reset procedure would do. Hence, delete all contexts after reception of E1 Setup Response. This minimizes a risk of receiving an E1 bearer setup req for an existing UE, which currently leads to an assert [we trust the CU-CP does not send the same UE ID twice, as we only "mirror" the existing UE ID].
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