dataTable forceIdIndexForuma not properly constructing sub component ids

When declaring a t:dataTable with forceIdIndexFormula set to an EL, the id of any nested component is not being properly constructed.

Instead of the id of the subcomponent being <tableId>:<indexForumaEL>:<subComponentId>

it seems as if it is truncating the last character of the tableId and not placing the : between TableId and indexForumaEL.

i.e.

tableId = "tableId"
forceIdIndexForuma evaluation = "formulaId"
subComponent id = "subId"

when the HTML table is created, the resulting subcomponent ID becomes "tableIformulaId:subId".

the basic dataTable is constructing the proper id. ("tableId:formulaId:subId")