Code Duplication    Length = 9-9 lines in 2 locations

includes/Revision.php 2 locations

@@ 1211-1219 (lines=9) @@
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	 *
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	 * @return Revision|null
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	 */
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	public function getPrevious() {
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		if ( $this->getTitle() ) {
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			$prev = $this->getTitle()->getPreviousRevisionID( $this->getId() );
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			if ( $prev ) {
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				return self::newFromTitle( $this->getTitle(), $prev );
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			}
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		}
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		return null;
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	}
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	/**
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	 * Get next revision for this title
@@ 1226-1234 (lines=9) @@
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	 *
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	 * @return Revision|null
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	 */
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	public function getNext() {
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		if ( $this->getTitle() ) {
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			$next = $this->getTitle()->getNextRevisionID( $this->getId() );
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			if ( $next ) {
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				return self::newFromTitle( $this->getTitle(), $next );
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			}
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		}
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		return null;
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	}
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	/**
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	 * Get previous revision Id for this page_id