In msg149930, Roger said "There are two major changes that are not covered by other issues (AFAIK). 
1) The "PseudoStderrFile" in PyShell.py brings the shell forward if an error occurs. I like this behavior.
2) Run a script without saving it first. This functionality is scattered across several files.

There are several other small tweaks in the patch that will need some review. "

1. When there is no syntax error, running code already lifts Shell.  I presume the use case is that someone might cover it with something else while a program is running.  In any case, I opened #30719 for this.  Note that the Psuedo classes have been replaced since 2010.

2. Running without saving is #19042.  Two variations are autosave to some file and no save to any file.  I don't know which G.Polo implemented, but #19042 covers both.  There are numerous other possible deviations from F5, as listed in msg296498.

3. I don't think searching for small tweaks is worth the bother, so I'm closing this.  Some things are fixed, some pending, some out-of-date.