ColorPicker crashes after selecting ColorPicker, then Textbox then back to ColorPicker again

[SSBMTonberry]

Hello!
First of all: I'm using ImGui version 1.62.

I discovered something weird when selecting a ImGui::ColorPicker3, then ImGui::InputText and then ImGui::ColorPicker3 again in my own project. Basicly the result was that the program crashed.
At first, I thought that I did something weird that might have caused it, but then I tried to do the same thing in the demo, and ended up with getting the same crash. The demo uses ImGui::ColorPicker4, but the result is the same.

How to reproduce:

Select the colorpicker in the demo (Under Widgets->Color/Picker Widgets):

Then select the textbox saying "Hello, world!" and has the label "input text" (under Widgets->Basic):

THEN, click on the colorpicker again.

The program will crash at the following place, if you experience the same as me:

Or as text:

void ImGui::MarkItemValueChanged(ImGuiID id)
{
    // This marking is solely to be able to provide info for IsItemDeactivatedAfterChange().
    // ActiveId might have been released by the time we call this (as in the typical press/release button behavior) but still need need to fill the data.
    (void)id; // Avoid unused variable warnings when asserts are compiled out.
    ImGuiContext& g = *GImGui;
    IM_ASSERT(g.ActiveId == id || g.ActiveId == 0);
    g.ActiveIdValueChanged = true;
}

Call-stack:

Hope this describes the issue well enough :)

• Robin

[ocornut]

Thank you @SSBMTonberry for the detailed bug report!
I pushed a fix for it now (this was a tricky one!).