This is one part of bug 9744: If you toggle between TeX fonts and non-TeX
fonts, the settings of the other choice are no longer thrown away, but stored
and re-activated if you switch back. Most parts of the patch are purely
mechanical (duplicating some BufferParams members), the only non-mechanical
change is in the GUI logic.
then just perform a null conversion. This seems better than aborting
with an error. I can imagine a script that converted all files in a
certain directory to format 498, and you don't want it to be an error
if one of them is already 498.
Prior to this, what lyx2lyx would do is convert to the lowest format
in the current version. So, e.g., asked to convert 498 to 498 it would
convert to 474. That is obviously wrong.
Each way might be preferred by a different developer and the more
ways that can be described of running the tests, the higher the
chance is that developers will find a way that works well for them.
Explain why the export tests are enabled for formats that are not
expected to work well with certain document classes, modules, or
packages. The reason is that if a .lyx file goes from compiling
successfully for one format (even if that format is not officially
supported for the combination of features used), if that document
suddenly fails to compile, there is a significant chance that a bug
was introduced in LyX. In other words, there is a high signal/noise
ratio. If it is determined that a test is failing because an
expected incompatibility is exposed, then the test can be inverted.
People working on the documentation do probably want to switch this on. It
gives easy access to LyX and LaTeX logos (bug 9626), and the info and menu
separator insets.
The export tests, check_load tests, and URL tests are now documented
in the Development.lyx file. The export tests are described in
detail, such as how to run them and how to interpret the results.
These icons are for lfuns that are not very interesting for users, but quite
often used when working on the LyX documentation. Now we can create a special
LyX documentation toolbar.