Authentication with Freeradius fails since upgrade to version >= 3.0.5

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Issue

Since upgrade of Freeradius to version >= 3.0.5 (e.g. freeradius-3.0.13-8.el7_4), authentication fails with message shown below
```
Auth: (0) Invalid user (Rejected: User-Name contains multiple ..s): [xxx]
```
Since upgrade of Freeradius to version >= 3.0.5 (e.g. freeradius-3.0.13-8.el7_4), customized policies do not work anymore

Environment

freeradius >= 3.0.5

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