Added introspection fragment matcher to Epic Boards
What does this MR do?
This MR adds an IntrospectionFragmentMatcher to Epic Boards to fix this console warning:
Does this MR meet the acceptance criteria?
Conformity
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📋 Does this MR need a changelog?-
I have included a changelog entry. -
I have not included a changelog entry because this MR fixes only developer-facing error.
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Documentation (if required) -
Code review guidelines -
Merge request performance guidelines -
Style guides -
Database guides -
Separation of EE specific content