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Shared Variables

It is common to share variables between fieldspaces and pages. When this is done, one must take careful note of any dependencies introduced, however. Remember that that the fieldspace will, in almost every case, be called in some context where the page is not called first, even if the fieldspace is only used on that page.7.3 Thus any variables that the fieldspace depends on should be declared/initialized/set in the fieldspace and not on the page.