Space is not inserted for `alignment_space_chars`

[KES777]

	"alignment_chars": ["=", "AS" ],
	"alignment_space_chars": ["=", "AS" ]

Next text:

   , p.Tot_Amt       AS LastAmount
   , PriorMonth.Total  AS PriorMonthPayment
   , CurrMonth.Total AS CurrMonthPayment

Is aligned as:

   , p.Tot_Amt       AS LastAmount
   , PriorMonth.TotalAS PriorMonthPayment
   , CurrMonth.Total AS CurrMonthPayment

Expected:

   , p.Tot_Amt        AS LastAmount
   , PriorMonth.Total AS PriorMonthPayment
   , CurrMonth.Total  AS CurrMonthPayment

This is the SQL.