src/sage/structure/element.pyx: Fix up

Author: Matthias Koeppe

src/sage/structure/element.pyx

@@ -4053,7 +4053,7 @@ cdef class PrincipalIdealDomainElement(DedekindDomainElement):
             right = py_scalar_to_element(right)
             if not isinstance(right, Element):
                 right = right.sage()
-        from sage.arith.misc import GCD as gcd
+        if not ((<Element>right)._parent is self._parent):
             from sage.arith.misc import GCD as gcd
             return coercion_model.bin_op(self, right, gcd)
         return self._gcd(right)
@@ -4087,7 +4087,7 @@ cdef class PrincipalIdealDomainElement(DedekindDomainElement):
             right = py_scalar_to_element(right)
             if not isinstance(right, Element):
                 right = right.sage()
-        from sage.arith.functions import lcm
+        if not ((<Element>right)._parent is self._parent):
             from sage.arith.functions import lcm
             return coercion_model.bin_op(self, right, lcm)
         return self._lcm(right)