웨일 구버전에서의 오류 케이스 사례를 참고하여, NSRange의 length를 0으로 재수정

(참고: #855 (comment))

OSXCore/InputReceiver.swift

@@ -172,7 +172,7 @@ extension InputReceiver { // IMKServerInput
         dlog(DEBUG_LOGGING, "LOGGING::COMMIT::%lu:%lu:%@", range.location, range.length, commitString)
         // NSLog("range1 \(range)")글
         if range.length == 0 {
-            range = NSRange(location: NSNotFound, length: NSNotFound)
+            range = NSRange(location: NSNotFound, length: 0)
         }
         // NSLog("commit \(commitString) to \(range)")
         controller.client().insertText(commitString, replacementRange: range)