This is a change of specification. The issue was brought to light by ZK-5156. Also, take a look at ZK-4198 and ZK-3704.

Steps to Reproduce

<decimalbox format="locale:en-IN" cols="20" value="123456789.00"/>
<doublebox format="locale:en-IN" cols="20" value="123456789.00"/>

Current Result

Prior to 9.6.3, both Decimalbox and Doublebox will display "12,34,56,789". Since 9.6.3, both Decimalbox and Doublebox will display "12,34,56,789.02". Due to the decision in ZK-5156.

Expected Result

It is preferable to change this specification by separating the concerns of the 2 fields, "format" and "locale".

We should reject:

<decimalbox width="200px" locale="es_CO" format="locale:es-CO"/>
<decimalbox width="200px" locale="es_SV" format="locale:es-SV"/>

link to the snippet above

And allow:

<decimalbox width="200px" locale="es_CO" format="###,##0.###"/>
<decimalbox width="200px" locale="es_SV" format="###,##0.###"/>

link to the snippet above

Even after the separation of concerns, it is still possible that the values of "locale" and "format" lead to a contradiction. For instance, the locale "en_IN" would yield "12,34,56,789.02". What if the user also specified the format "###,##0.###"? Should the "format" field override the "locale" field and yield "123,456,789.020" instead? This sort of problem should be thought through.