Bug 459867

SUMMARY
When using the Fill Tool while having the "use selection as limit" option set, any attempt to fill a selected area with a color or pattern will result in the tool only filling the contiguos pixels that match the color of the selected pixel, doesnt fill the whole selection as it used to do

STEPS TO REPRODUCE
1. Create a new color layer
2. Paint it with different colors, any shape is okay
3. Using the Square Selection Tool, select an area of the layer that contains multiple colors and shapes
4. Select Fill Tool
5. Move to Tool Options Panel (it is usually on the top right of the screen)
6. In the option selector in the top that says something like "What to fill?", select "Contiguos..." option
7. In the new options sections that will apear below, move to the "Region Extension" section and then check the "Use selection as limit" checkbox
8. Change the color of the current brush to some color that is different from the ones used to paint the layer
9. Using the Fill Tool try to fill the whole selected area, regardless of the color, with the last color selected

OBSERVED RESULT
Whole area won't get filled with the last selected color. Only the contiguos pixels of the selected pixel (pixels that match the color of the selected pixel) will get filled

EXPECTED RESULT
Whole selected area gets filled with the last selected color, regardless of the color of the selected pixel or the color of the contiguos pixels as long as they are in the same selection


SOFTWARE/OS VERSIONS
I have only tried this on windows 10 machines

ADDITIONAL INFORMATION
In version 5.0.2 this used to work as expected