Our current exclusion does not remove `! Redirect:` directive

[zloyden]

To reproduce it:

1. Add my filter via @include to any template of the filter. For instance, Dandelion Sprout Annoyances

@include "https://raw.githubusercontent.com/zloyden/fox/master/123.txt" /exclude="../../exclusions.txt"

2. Run the filter build
3. It does not work, but it should work due to exclusion Redirect:

Please also check that this Regex should also apply and remove the redirect directive.

[Alex-302]

About regex - text /^\!\s*(R|r)edirect:/ without Redirect: and redirect:

[ameshkov]

Well, the proper reaction to redirect directive should be failing the build completely

[ameshkov]

The point is that when this happens we should react accordingly and change the FiltersRegistry

[Alex-302]

Should we revert https://github.com/AdguardTeam/FiltersRegistry/pull/638 and just remove redirect: exclusions?