Ich kann zu meinen Legancy Accout vor der Migration keine Daten ändern (z.B. E-Mail)

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What I expected to happen was...:
Describe what you thought should happen here

What actually happened was...:
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Steps to Reproduce:
1. Put a step by step guide on how to trigger the bug here
2. Ich kann zu meinen Legancy Accout vor der Migration keine Daten ändern (z.B. E-Mail)
3. ...