multi-unit text selection issue

Description

In this project in eeschema, the unit text is not selectable in a drag selection. It is only individually selectable.

• It is impossible to drag-select with either crossing or rectangle selection the Module A or B text

• Selecting the Unit B body selects the text above it correctly

Steps to reproduce

See attached test project ki99.zip

KiCad Version

Application: Eeschema

Version: (5.99.0-7376-g59527dff2), debug build

Libraries:
	wxWidgets 3.1.4
	libcurl/7.73.0-DEV Schannel zlib/1.2.11

Platform: Windows 10 (build 19042), 64-bit edition, 64 bit, Little endian, wxMSW

Build Info:
	Date: Dec  7 2020 10:31:55
	wxWidgets: 3.1.4 (wchar_t,STL containers)
	Boost: 1.74.0
	OCC: 7.4.0
	Curl: 7.73.0-DEV
	ngspice: 32
	Compiler: Visual C++ 1928 without C++ ABI

Build settings:
	KICAD_SCRIPTING=OFF
	KICAD_SCRIPTING_MODULES=OFF
	KICAD_SCRIPTING_PYTHON3=OFF
	KICAD_SCRIPTING_WXPYTHON=OFF
	KICAD_SCRIPTING_WXPYTHON_PHOENIX=OFF
	KICAD_SCRIPTING_ACTION_MENU=OFF
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON
	KICAD_STDLIB_DEBUG=OFF
	KICAD_STDLIB_LIGHT_DEBUG=OFF
	KICAD_SANITIZE=OFF