historical bars fill fix

src/charts/ohlc.js

@@ -121,10 +121,10 @@ export async function loadOHLC (symbol, contract, from, to, tvRes) {
 
     function fill(end, period) {
         if (latest===null) return
-        const [start, price] = latest
-        const periodSecs = period * 60
-        end = ohlcStart(end, periodSecs)
-        for (let now=ohlcStart(start+periodSecs, periodSecs); now < end; now += periodSecs ) {
+        const [latestTime, price] = latest
+        end = ohlcStart(end, period)
+        const start = ohlcStart(latestTime+period, period);
+        for (let now= start; now < end; now += period ) {
             bars.push({time:now * 1000, open:price, high:price, low:price, close:price})
             latest = [now, price]
         }