Faythe didn't process healing actions due to ignore case logic

[ntk148v]

By default, Faythe won't process the healing actions if the number of instances needed healing more than 3. But this number may contain the silenced instances as well.

Expected:

<number of healing instance> = <number of the actual down instance>

Actual:

<number of healing instance> = <number of the actual down instance> + <number of the silenced instance>