full_simplify involving square root without success

[dkrenn]

sage: var('r')
r
sage: t = (sqrt(3) + 4/(sqrt(3) + I) + I)/r^(1/2)
sage: t.full_simplify()
(2*I*sqrt(3) + 6)/(sqrt(r)*(sqrt(3) + I))

Note that simplify by getting rid of the factor r^(1/2) it works::

sage: (t*r^(1/2)).full_simplify()
2*sqrt(3)

Component: symbolics

Issue created by migration from https://trac.sagemath.org/ticket/19995