[LyX/master] Add a TODO file for the latest tests

[Thibaut Cuvelier]

commit 33cc71636ffeaae0eae890b08ca6d5eaed7293f3
Author: Thibaut Cuvelier <tcuvelier at lyx.org>
Date:   Sun Dec 25 20:39:14 2022 +0100

    Add a TODO file for the latest tests
---
 development/thorough_export_tests/TODO |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/development/thorough_export_tests/TODO b/development/thorough_export_tests/TODO
new file mode 100644
index 0000000..084e4c9
--- /dev/null
+++ b/development/thorough_export_tests/TODO
@@ -0,0 +1,5 @@
+Integrate this part of the tests into CTest.
+Target: after the release of 2.4.
+
+Remove extraneous from LyX when it encounters unknown document classes
+(nothing LaTeX in this folder for now) when exporting from CLI.