🐛 don't switch to discrete bar chart when timeline is hidden

packages/@ourworldindata/grapher/src/core/Grapher.tsx

@@ -1749,17 +1749,19 @@ export class Grapher
     @computed get isLineChartThatTurnedIntoDiscreteBar(): boolean {
         if (!this.isLineChart) return false
 
+        const [minTime, maxTime] = this.timelineHandleTimeBounds
+
         // This is the easy case: minTime and maxTime are the same, no need to do
         // more fancy checks
-        if (this.minTime === this.maxTime) return true
+        if (minTime === maxTime) return true
 
         // We can have cases where minTime = Infinity and/or maxTime = -Infinity,
         // but still only a single year is selected.
         // To check for that we need to look at the times array.
         const times = this.tableAfterAuthorTimelineFilter.timeColumn.uniqValues
-        const minTime = findClosestTime(times, this.minTime ?? -Infinity)
-        const maxTime = findClosestTime(times, this.maxTime ?? Infinity)
-        return minTime !== undefined && minTime === maxTime
+        const closestMinTime = findClosestTime(times, minTime)
+        const closestMaxTime = findClosestTime(times, maxTime)
+        return closestMinTime !== undefined && closestMinTime === closestMaxTime
     }
 
     @computed get supportsMultipleYColumns(): boolean {