The test is meant to illustrate a failure of an incomplete actrange when the rest of the line is correct.
PiperOrigin-RevId: 451895379
Change-Id: I9782fae7055c9bed87ccbc0fda18495aacb2ae8a
Fixes a bug introduced in CL/432455486, which stopped saving explicit inertias if they were inferred from geoms. But if we don't save inertias then we need to save mass/density specifiers.
BEGIN_PUBLIC
xml_native_writer saves geom mass or density, if specified.
END_PUBLIC
PiperOrigin-RevId: 450667775
Change-Id: Ibb5b269b58f1143013091729642bb501243ed943