fixup! feat: fixup

Author: susnux

lib/private/Memcache/KeyValueCache.php

@@ -80,7 +80,7 @@ public function hasKey($key) {
 
 	#[\Override]
 	public function remove($key) {
-		return (bool)$this->getCache()->unlink($this->getPrefix() . $key);
+		return (bool)$this->getCache()->del($this->getPrefix() . $key);
 	}
 
 	#[\Override]
@@ -165,7 +165,12 @@ public function inc($key, $step = 1) {
 	 */
 	#[\Override]
 	public function dec($key, $step = 1) {
-		$res = $this->evalLua('dec', [$key], [$step]);
+		try {
+			$res = $this->evalLua('dec', [$key], [$step]);
+		} catch (ServerException) {
+			// The stored value is not an integer
+			return false;
+		}
 		return ($res === 'NEX') ? false : $res;
 	}