Filters are being ignored

[ghost]

All filters[] in config are ignored.

The reason is in Lib/AssetConfig::filters(). It expects filters to be in $this->_data[$ext][self::FILTERS], otherwise it returns an empty array and no filters are proccessed. But filters comes in $this->_data[$ext][self::TARGETS][$target][self::FILTERS].

Commenting out the following lines solves the problem (filters are proccessed just after this, in the very same function):
// if (!isset($this->_data[$ext][self::FILTERS])) {
// return array();
// }

[ghost]

More generically, I've changed this:

if (!isset($this->_data[$ext][self::FILTERS])) {
return array();
}
$filters = (array)$this->_data[$ext][self::FILTERS];

to this:
if (!isset($this->_data[$ext][self::FILTERS])) {
$filters = array();
} else {
$filters = (array)$this->_data[$ext][self::FILTERS];
}