I just started using Pelles C this week, am using version 6.50.8 Release Candidate #4 (Win64).
In dialog editor, editing 'Text' property of one control changes 'Text' property on another. Easy to duplicate:
1) Open any dialog resource (or create a new one).
2) Insert two new edit controls anywhere
3) Right-click on one, select Properties, double-click on Text property (default says 'Edit')
4) Change it to something else ('new text'), but don't press Enter
5) Use mouse to select other control
6) The new control has 'new text' for its Text property
In further testing, this seem to happen no matter what type of controls I've tried, if the Text or Name fields are in the middle of editing and you click on a different control, the editor wants to give that value being changed to the new control.
- ejamesr