BUG: symlog colorbar minor ticks are not drawn when vmax and vmin are both strictly negative

[neutrinoceros]

Bug report

Bug summary

Similar to #3535, but specifically for the case vmax and vmin are both strictly negative

Code for reproduction
Using matplotlib 3.5.0rc1

import yt

ds = yt.testing.fake_amr_ds(fields=[("gas", "density")], units=["g/cm**3"], geometry="polar")
yt.testing.add_noise_fields(ds)
p = yt.SlicePlot(ds, "z", "noise2")

p.save(f"/tmp/")

and using this temporary patch to make it testable before 3.5.0 final is released

diff --git a/yt/visualization/plot_window.py b/yt/visualization/plot_window.py
index 53a1fe9ad..4a78ef179 100644
--- a/yt/visualization/plot_window.py
+++ b/yt/visualization/plot_window.py
@@ -1223,7 +1223,7 @@ class PWViewerMPL(PlotWindow):
                     self.plots[f].cax.minorticks_on()

                 elif self._field_transform[f] == symlog_transform:
-                    if Version("3.2.0") <= MPL_VERSION < Version("3.5.0"):
+                    if Version("3.2.0") <= MPL_VERSION < Version("3.5.0b"):
                         # no known working method to draw symlog minor ticks
                         # see https://github.com/yt-project/yt/issues/3535
                         pass
@@ -1232,7 +1232,7 @@ class PWViewerMPL(PlotWindow):
                             np.log10(self.plots[f].cb.norm.linthresh)
                         )
                         mticks = get_symlog_minorticks(flinthresh, vmin, vmax)
-                        if MPL_VERSION < Version("3.5.0"):
+                        if MPL_VERSION < Version("3.5.0b"):
                             # https://github.com/matplotlib/matplotlib/issues/21258
                             mticks = self.plots[f].image.norm(mticks)
                         self.plots[f].cax.yaxis.set_ticks(mticks, minor=True)

Actual outcome

Expected outcome

(minor ticks are drawn)