make logic more specific by checking daysInNewMonth vs currentDate at…

… start of function

library/src/lib/calendar/calendar.component.ts

@@ -616,17 +616,21 @@ export class CalendarComponent implements OnInit, OnDestroy, AfterViewChecked, C
     setCurrentMonth(month: number) {
         // get the current date of the month
         const currentDate = this.date.getDate();
+        // get the number of days in the new month
+        const daysInNewMonth = new Date(this.date.getFullYear(), month + 1, 0).getDate();
         /*
-         set the date to the first for now, to prevent skipping a month
+         if the currentDate > daysInNewMonth, set the date to the first for now, to prevent skipping a month
          in the event that the currentDate is 31 and the next month has 30 days
          */
-        this.date.setDate(1);
+        if (currentDate > daysInNewMonth) {
+            this.date.setDate(1);
+        }
         // set the month
         this.date.setMonth(month);
-        // get the number of days in this month
-        const daysInMonth = new Date(this.date.getFullYear(), this.date.getMonth() + 1, 0).getDate();
-        // restore the date to whichever number is lower, today's date or the number of days in this month
-        this.date.setDate(Math.min(currentDate, daysInMonth));
+        // if currentDate > daysInNewMonth, restore the date to whichever number is lower, today's date or the number of days in this month
+        if (currentDate > daysInNewMonth) {
+            this.date.setDate(Math.min(currentDate, daysInNewMonth));
+        }
         this.month = this.date.getMonth();
         this.monthName = this.monthsFullName[this.date.getMonth()];
         this.year = this.date.getFullYear();