Issue with producing rotated projection with contour

As we've observed I can do a default projection (cyl) with the following code, but when introducing mapset with proj as "rotated" an error occurs. I expected a rotated projection to appear with contour plots and a title. The same issue also occurs withe the "ortho" projection/

>>> f=cf.read('cfplot_data/ggap.nc')[0]
>>> cfp.gopen()
>>> cfp.con(f.subspace(pressure=850), lines=False, title = "rotated", colorbar_position=[0.1, 0.1, 0.8, 0.02], colorbar_orientation='horizontal')
>>> cfp.gclose()
>>> cfp.gopen()
>>> cfp.mapset(proj="rotated")
>>> cfp.con(f.subspace(pressure=850), lines=False, title = "rotated", colorbar_position=[0.1, 0.1, 0.8, 0.02], colorbar_orientation='horizontal')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/natalia/anaconda3/lib/python3.12/site-packages/cfplot/cfplot.py", line 1097, in con
    map_title(title)
  File "/home/natalia/anaconda3/lib/python3.12/site-packages/cfplot/cfplot.py", line 9014, in map_title
    plotvars.mymap.text(xpt, ypt, title, va='bottom',
                        ^^^
UnboundLocalError: cannot access local variable 'xpt' where it is not associated with a value

Environment

Using the main branch:

Platform: Linux-5.4.0-131-generic-x86_64-with-glibc2.31
HDF5 library: 1.12.1
netcdf library: 4.8.1
udunits2 library: /home/natalia/anaconda3/lib/libudunits2.so.0
esmpy/ESMF: not available
Python: 3.12.2
dask: 2024.5.0
netCDF4: 1.6.2
psutil: 5.9.0
packaging: 23.2
numpy: 1.26.4
scipy: 1.13.1
matplotlib: 3.8.4
cftime: 1.6.4
cfunits: 3.3.7
cfplot: 3.3.0
cfdm: 1.11.1.0
cf: 3.16.1

Reproduce the rotated and ortho cases from the issue, then inspect cfplot/cfplot.py around map_title(), especially the traceback location where xpt and ypt are passed to map.text. Trace how those coordinates are selected for each projection. Done means contour plots render for both projections with the requested title and no UnboundLocalError.