Paging broken due to wrong offset calculation
---------------------------------------------

                 Key: MGNLSTK-744
                 URL: http://jira.magnolia-cms.com/browse/MGNLSTK-744
             Project: Magnolia Standard Templating Kit
          Issue Type: Bug
    Affects Versions: 1.4.2
         Environment: all systems
            Reporter: Frank Rittinger
            Assignee: Philipp Bärfuss
            Priority: Major


STKPager calculates wrong sublist for display due to an error in the offset 
calculation. This was introduced by the update from 1.4.1 to 1.4.2:
{noformat}
    protected int getOffset() {
        int offset = ((getCurrentPage()) * maxResultsPerPage) -1;
        if(offset > count) {
            int pages = count / maxResultsPerPage;
            offset = pages * maxResultsPerPage;
        }
        return offset;
    }
{noformat}

should be


{noformat}
    protected int getOffset() {
        int offset = (getCurrentPage() - 1) * maxResultsPerPage;
        if(offset > count) {
            int pages = count / maxResultsPerPage;
            offset = pages * maxResultsPerPage;
        }
        return offset;
    }
{noformat}


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