Because when the focus changes, the morph is proposed to redraw itself
Try with a 

    self changed

at the end

Ben

On 27 Dec 2013, at 14:44, Andrei Chis <chisvasileandrei@gmail.com> wrote:


The change that seems to have caused this problem is in PluggableTextMorph>>selectionInterval: The selectionInterval instance variable of the morph is not set any more; only the model is updated, which doesn't seem to update the morph.

PluggableTextMorph>>selectionInterval: sel
setSelectionSelector
ifNil: [ selectionInterval := sel ]
ifNotNil: [ self model perform:setSelectionSelector with: sel ]

This could be solved like bellow, though I'm not sure it is the best solution. 
If I put a halt in PluggableTextMorph >>inspectIt and hit proceed the the selection is inspected correctly, without this modification.

PluggableTextMorph>>selectionInterval: sel
        selectionInterval := sel.
setSelectionSelector
ifNotNil: [ self model perform:setSelectionSelector with: sel ]





On Fri, Dec 27, 2013 at 3:11 PM, Marcus Denker <marcus.denker@inria.fr> wrote:

On 27 Dec 2013, at 13:01, St�phane Ducasse <stephane.ducasse@inria.fr> wrote:

> Hi guys
>
> we should not let the system in such state. We cannot inspect print expression in the debugger.
> Does anybody have an idea of the change that broke it?
>
Yes:

        https://pharo.fogbugz.com/f/cases/12144/TextModel-getSelection

it was added in 655, so for reverting the easiest is to dl 654, do a merge and look at all the changes
(there are just 4-5 that are not re-catorizations).

This is on my TODO next�

        Marcus