Namespace with "enum" at its begining not being properly handled

While attempting to migrate a project from Qt5 to Qt6, I encountered an unexpected behavior from the moc tool. If a namespace has the "enum" characters at its begining, for example, a namespace called "enumerations" the moc tool will strip the "enum" characters and generate a compile error.

A minimum example to replicate the behavior can be found at: https://pastebin.com/PuxaV0e6

And the corrupted moc output: https://pastebin.com/Ujs1B8W3