Reinstated test for #20389

Author: Andy Ferris

test/linalg/rowvector.jl

@@ -235,3 +235,17 @@ end
 
     @test_throws DimensionMismatch ut\rv
 end
+
+# issue #20389
+@testset "1 row/col vec*mat" begin
+    let x=[1,2,3], A=ones(1,4), y=x', B=A', C=x.*A
+        @test x*A == y'*A == x*B' == y'*B' == C
+        @test A'*x' == A'*y == B*x' == B*y == C'
+    end
+end
+@testset "complex 1 row/col vec*mat" begin
+    let x=[1,2,3]*im, A=ones(1,4)*im, y=x', B=A', C=x.*A
+        @test x*A == y'*A == x*B' == y'*B' == C
+        @test A'*x' == A'*y == B*x' == B*y == C'
+    end
+end