address pr feedback

Author: miles-grant-ibigroup

lib/editor/components/timetable/TimetableGrid.js

@@ -197,7 +197,7 @@ export default class TimetableGrid extends Component<Props> {
       case 222: { // single quote
         // Set current cell's value to adjacent cell's (leftward) value.
         const adjacentCol = columns[this._getColIndex(scrollToColumn) - 1]
-        if (evt.shiftKey && !activeCell && isTimeFormat(adjacentCol.type)) {
+        if (evt.shiftKey && !activeCell && adjacentCol && isTimeFormat(adjacentCol.type) && isTimeFormat(col.type)) {
           const value = objectPath.get(data[scrollToRow], adjacentCol.key)
           this._handleCellChange(value, scrollToRow, col, scrollToColumn)
           this.offsetScrollCol(1)
@@ -208,7 +208,7 @@ export default class TimetableGrid extends Component<Props> {
       case 76: { // l
         // Set current cell's value to adjacent cell's (rightward) value.
         const adjacentCol = columns[this._getColIndex(scrollToColumn) + 1]
-        if (evt.shiftKey && !activeCell && isTimeFormat(adjacentCol.type)) {
+        if (evt.shiftKey && !activeCell && adjacentCol && isTimeFormat(adjacentCol.type) && isTimeFormat(col.type)) {
           const value = objectPath.get(data[scrollToRow], adjacentCol.key)
           this._handleCellChange(value, scrollToRow, col, scrollToColumn)
           this.offsetScrollCol(-1)