private void reset() throws IOException {
			boolean hadNext = hasNext;
			boolean hadPrev = hasPrev;
			initialize(key);
			if (hasNext && hasPrev) {
				hasNext = hadNext;
				hasPrev = hadPrev;
			}
		}
Initialize (or re-initialize) iterator state.
An empty or null keys array will force a complete initialization.
Otherwise, following the deletethe keys array and keyIndex should reflect the state
following a delete.
@param targetKey the initial key.  For construction this is the startKey, 
following a delete this is the deleted key.
@throws IOException thrown if IO error occurs
Ghidra/Framework/DB/src/main/java/db/Table.java