eca_config: Action "Config: write" does not support scalar tokens
Problem/Motivation
The action "Config: write" supports tokens to be used to write configuration values. However, when a token is set that itself is just a string, the action wrongly converts the value to an array.
Steps to reproduce
Proposed resolution
Remaining tasks
Fix the bug, cover with a test.
User interface changes
API changes
Data model changes
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