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Fix bug #8370: crash when searching for next change
Cursor::backwardPos() may enter in a nested inset, while CursorSlice::backwardPos() will not.
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@ -452,13 +452,14 @@ bool findChange(BufferView * bv, bool next)
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bv->cursor().setCursor(cur);
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bv->cursor().resetAnchor();
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CursorSlice & tip = cur.top();
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if (!next)
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// take a step into the change
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cur.backwardPos();
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tip.backwardPos();
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Change orig_change = cur.paragraph().lookupChange(cur.pos());
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Change orig_change = tip.paragraph().lookupChange(tip.pos());
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CursorSlice & tip = cur.top();
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if (next) {
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for (; !tip.at_end(); tip.forwardPos()) {
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Change change = tip.paragraph().lookupChange(tip.pos());
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