ensure the correct number of beds is calculated if the log is for a bedsit and the beds attribute has been temporarily cleared

app/models/lettings_log.rb

@@ -533,7 +533,9 @@ class LettingsLog < Log
   def beds_for_la_rent_range
     return 0 if is_supported_housing?
 
-    beds.nil? ? nil : [beds, LaRentRange::MAX_BEDS].min
+    real_beds = beds || (1 if is_bedsit?)
+
+    real_beds.nil? ? nil : [real_beds, LaRentRange::MAX_BEDS].min
   end
 
   def soft_min_for_period

spec/models/lettings_log_spec.rb

@@ -1834,6 +1834,14 @@ RSpec.describe LettingsLog do
         expect(lettings_log.beds_for_la_rent_range).to eq(4)
       end
     end
+
+    context "when the log is for a bedsit, beds is not routed to and is not yet re-derived" do
+      let(:lettings_log) { build(:lettings_log, unittype_gn: 2, beds: nil) }
+
+      it "returns 1" do
+        expect(lettings_log.beds_for_la_rent_range).to eq(1)
+      end
+    end
   end
 
   describe "#collection_period_open?" do