Warp Ring Location previews are broken

[Asuna Yuuki Nagato]

Steps to recreate:

1. File->New
2. Quest->Misc Data->Warp Rings
3. Select '0' in "Warp Rings" window
4. Click 'Edit' button
5. Set 'Count' to 3 in "Ring 0 Warps" window
6. Select '1'
7. Observe warp location is screen 0x00 in mini-map on the "Ring 0 Warps" window
8. Click 'Edit' button
9. Click the square for screen 0x0F in matrix or type 0F into the "Screen: 0x" field
10. Click 'OK' button
11. Observe warp location is still screen 0x00 in mini-map on the "Ring 0 Warps" window, even though "Scr: 0x0F" is below it

The mini-map on the "Ring 0 Warp 1" is also affected.

[Asuna Yuuki Nagato]

The Warp Rings window is created by onWarpRings() in zquest.cpp

[Asuna Yuuki Nagato]

The actual window the preview is displayed on is created by EditWarpRing in zquest.cpp

[Asuna Yuuki Nagato]

When commenting out this line from the warpring_dlg array, the preview display disappears:

    { d_warplist_proc,       16,     50,     65,     71,    jwin_pal[jcTEXTFG],     jwin_pal[jcTEXTBG],      0,    D_EXIT,     0,          0, (void *) &number_list,   NULL,   warpringdmapxy  },