fop-core/src/main/java/org/apache/fop/area/inline/InlineParent.java [138:149]:
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    private void updateLevel(int newLevel) {
        if (newLevel >= 0) {
            int curLevel = getBidiLevel();
            if (curLevel >= 0) {
                if (newLevel < curLevel) {
                    setBidiLevel(newLevel);
                }
            } else {
                setBidiLevel(newLevel);
            }
        }
    }
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fop-core/src/main/java/org/apache/fop/area/inline/TextArea.java [177:188]:
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    public void updateLevel(int newLevel) {
        if (newLevel >= 0) {
            int curLevel = getBidiLevel();
            if (curLevel >= 0) {
                if (newLevel < curLevel) {
                    setBidiLevel(newLevel);
                }
            } else {
                setBidiLevel(newLevel);
            }
        }
    }
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