Prevent mobile view change on location clear

lib/actions/form.js

@@ -157,6 +157,8 @@ export function checkShouldReplanTrip(autoPlan, isMobile, oldQuery, newQuery) {
     (fromChanged && !toChanged) || (!fromChanged && toChanged)
   // Check whether a trip should be auto-replanned
   const strategy = (isMobile && autoPlan?.mobile) || autoPlan?.default
+  const locationChangedToBlank =
+    (oldQuery.from && !newQuery.from) || (oldQuery.to && !newQuery.to)
   const shouldReplanTrip =
     evaluateAutoPlanStrategy(
       strategy,
@@ -170,6 +172,7 @@ export function checkShouldReplanTrip(autoPlan, isMobile, oldQuery, newQuery) {
     (oldQuery.from || oldQuery.to)
   return {
     fromChanged,
+    locationChangedToBlank,
     oneLocationChanged,
     shouldReplanTrip,
     toChanged
@@ -203,8 +206,13 @@ export function formChanged(oldQuery, newQuery) {
     const { config, ui } = state.otp
     const { autoPlan, debouncePlanTimeMs } = config
     const isMobile = coreUtils.ui.isMobile()
-    const { fromChanged, oneLocationChanged, shouldReplanTrip, toChanged } =
-      checkShouldReplanTrip(autoPlan, isMobile, oldQuery, newQuery)
+    const {
+      fromChanged,
+      locationChangedToBlank,
+      oneLocationChanged,
+      shouldReplanTrip,
+      toChanged
+    } = checkShouldReplanTrip(autoPlan, isMobile, oldQuery, newQuery)
 
     dispatch(updateQueryTimeIfLeavingNow())
 
@@ -222,7 +230,10 @@ export function formChanged(oldQuery, newQuery) {
         // Return to search screen on mobile only if not currently on welcome
         // screen (otherwise when the current position is auto-set the screen
         // will change unexpectedly).
-        if (ui.mobileScreen !== MobileScreens.WELCOME_SCREEN) {
+        if (
+          ui.mobileScreen !== MobileScreens.WELCOME_SCREEN &&
+          !locationChangedToBlank
+        ) {
           dispatch(setMobileScreen(MobileScreens.SEARCH_FORM))
         }
       }