fix invalid date crash

Author: kurtextrem

app/src/lib/format-relative.ts

@@ -15,6 +15,10 @@ const getRelativeFormatter = mem(
 )
 
 export function formatRelative(ms: number) {
+  if (!Number.isFinite(ms)) {
+    return 'Invalid date'
+  }
+
   const formatter = getRelativeFormatter('en-US', { numeric: 'auto' })
 
   const sign = ms < 0 ? -1 : 1

app/src/ui/branches/branch-renderer.tsx

@@ -46,6 +46,10 @@ export function getDefaultAriaLabelForBranch(item: IBranchListItem): string {
     return branch.name
   }
 
+  if (Number.isNaN(authorDate.getTime())) {
+    return branch.name
+  }
+
   const { relativeText } = getRelativeTimeInfoFromDate(authorDate, true)
   return `${item.branch.name} ${relativeText}`
 }