Error setting date format as "SF"

I have moved the addDateTimeFormatPatterns funtion from the .aj file to the .java controler, to change the date format.

Code:

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    void addDateTimeFormatPatterns(Model uiModel) {
        uiModel.addAttribute("myentity_datecreation_date_format", DateTimeFormat.patternForStyle("SF", LocaleContextHolder.getLocale()));
    }

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But now the date is showed in the list.jspx as

Code:

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23/01/13 18'18'19'' CET

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The code at list.jspx is the one generated by roo.

Code:

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<table:column date="true" dateTimePattern="${myentity_datecreation_date_format}" id="myentity_DateCreation" property="dateCreation" z="B1V1DL81MdguOdjVlhJcxPibASo="/>

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Is a know bug? should I open a Jira ticket?