Hi, I have been trying to use the input control with validation states has-success, has-warning and has-danger bootstrap 4 classes and the MDB theme breaks the expected behaviour. Using the example from the bootstrap docs the expected behavior when setting either of these classes on the form-group when the input is focused is for the input to show the correct colour state (i.e. Red for has-danger). However the input shows the default primary colour instead when focused when any of the validation states are set. i.e. Here is an example: <div class="form-group has-danger"> <label class="form-control-label" for="inputDanger1">Input with danger</label> <input type="text" class="form-control form-control-danger" id="inputDanger1"> <div class="form-control-feedback">Sorry, that username's taken. Try another?</div> </div> Using default bootstrap 4 this input remains Red when focused. However, when applying MDB it appears blue. I am also experiencing issues where the input does not show the correct validation colour when I focus out of the input. I can query the classes on the input and find that it includes 'has-danger' yet the control shows up green. At the moment, having purchased MDB, I am finding input validation unusable. Please can you confirm whether this is a bug and advise the best approach to get the expected bootstrap 4 behaviour? Regards, Jonathan Yates

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