Trac #33957: Manifold.options.omit_function_arguments ineffective for arguments not in alphabetic order

In Sage 9.7.beta1, we have
{{{
sage: S.<theta, phi> = manifolds.Sphere(2, coordinates='spherical')
sage: F = S.scalar_field(function('f')(theta, phi) +
function('g')(theta))
sage: F.display()
S^2 → ℝ
on A: (theta, phi) ↦ f(theta, phi) + g(theta)
}}}
So far, so good, but
{{{
sage: S.options.omit_function_arguments = True
sage: F.display()
S^2 → ℝ
on A: (theta, phi) ↦ f(theta, phi) + g
}}}
The r.h.s. should be `f + g`.

This bug is actually triggered by the following feature/bug of symbolic
expressions:
{{{
sage: function('f')(theta, phi).arguments()
(phi, theta)
}}}
i.e. `arguments()` returns the arguments sorted according to the
alphabetical order, as reported in https://groups.google.com/g/sage-
devel/c/Gt6GWZU-cI4/. See also #32227.

URL: https://trac.sagemath.org/33957
Reported by: egourgoulhon
Ticket author(s): Utkarsh Sharma
Reviewer(s): Eric Gourgoulhon

Author: Release Manager

src/sage/manifolds/utilities.py

@@ -999,13 +999,14 @@ def _repr_(self):
 
             d = d.replace(o, res)
 
+        import re
         from sage.manifolds.manifold import TopologicalManifold
         if TopologicalManifold.options.omit_function_arguments:
             list_f = []
             _list_functions(self, list_f)
 
             for m in list_f:
-                d = d.replace(m[1] + m[2], m[1])
+                d = re.sub(m[1] + r'\([^)]+\)', m[1], d)
 
         return d