Use absolute references in body

These relative refs were likely introduced by analogy to itemset declarations

Author: lognaturel

src/test/java/org/javarosa/core/model/DynamicSelectUpdateTest.java

@@ -131,8 +131,8 @@ private static XFormsElement getSelectFromRepeatForm(String predicate) {
                             t("select"))))),
             body(
                 repeat("/data/repeat",
-                    input("value"),
-                    input("label")),
+                    input("/data/repeat/value"),
+                    input("/data/repeat/label")),
                 input("filter"),
                 select1Dynamic("/data/select", "../repeat" + (!predicate.isEmpty() ? "[" + predicate + "]" : ""))
             ));
@@ -274,7 +274,7 @@ public void selectInRepeat_withRefToRepeatChildInPredicate_evaluatesChoiceListFo
                         item("bb", "BB")))),
             body(
                 repeat("/data/repeat",
-                    input("filter"),
+                    input("/data/filter"),
                     select1Dynamic("/data/repeat/select", "instance('choices')/root/item[starts-with(value,current()/../filter)]"))
             )));