Merge pull request #3908 from Unidata/backport-pr-3902

Silence FututreWarning raised by xarray v2025.08.0 (backport)

Author: dopplershift

ci/test_requirements.txt

@@ -3,4 +3,4 @@ pytest==8.3.5
 pytest-mpl==0.17.0
 netCDF4==1.7.2
 coverage==7.8.0
-vcrpy==7.0.0
+vcrpy==7.0.0

src/metpy/xarray.py

@@ -810,7 +810,7 @@ def parse_cf(self, varname=None, coordinates=None):
         if np.iterable(varname) and not isinstance(varname, str):
             # If non-string iterable is given, apply recursively across the varnames
             subset = xr.merge([self.parse_cf(single_varname, coordinates=coordinates)
-                               for single_varname in varname])
+                               for single_varname in varname], compat='no_conflicts')
             subset.attrs = self._dataset.attrs
             return subset