Fix cot location validation
Fix cot location validation

eric-seekas/CotEditor,onevcat/CotEditor,yangchenghu/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,onevcat/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,yangchenghu/CotEditor,uchuugaka/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,eric-seekas/CotEditor,uchuugaka/CotEditor,onevcat/CotEditor,eric-seekas/CotEditor