Fix sorted map.

ehsannas · ehsannas · commit 5ca49914346f · 2022-02-18T23:02:41.000-06:00
diff --git a/packages/firestore/src/util/sorted_map.ts b/packages/firestore/src/util/sorted_map.ts
@@ -197,7 +197,7 @@ export class SortedMapIterator<K, V> {
     while (!node.isEmpty()) {
       cmp = startKey ? comparator(node.key, startKey) : 1;
       // flip the comparison if we're going in reverse
-      if (isReverse) {
+      if (startKey && isReverse) {
         cmp *= -1;
       }
 

Original file line number	Diff line number	Diff line change
`@@ -197,7 +197,7 @@ export class SortedMapIterator<K, V> {`
`197`	`197`	`while (!node.isEmpty()) {`
`198`	`198`	`cmp = startKey ? comparator(node.key, startKey) : 1;`
`199`	`199`	`// flip the comparison if we're going in reverse`
`200`		`- if (isReverse) {`
	`200`	`+ if (startKey && isReverse) {`
`201`	`201`	`cmp *= -1;`
`202`	`202`	`}`
`203`	`203`