Created attachment 1146046 [details]
Screenshot showing improperly sized spin boxes.

Description of problem:
Some applications like qbittorrent, built against qt5 are displaying two anomalies when opened under Gnome using the adwaita-qt theme:

1. The spin boxes are not displaying the text box control with appropriate width, most of the text is hidden. Resizing of parent dialog has no effect.

2. Menu items which can be checked/unchecked show up as checked all the time, although the value changes after each click, i.e. toggle works internally, but improper indication is shown on GUI.

Version-Release number of selected component (if applicable):
5-0.3-2

How reproducible:
By opening any dialog in a qt5 application containing spin box controls and opening any menu which has items that can be checked/unchecked.

Steps to Reproduce:

For example purpose, these steps use qbittorrent application's latest version in fedora repos.

1. Open the options dialog of qbittorrent and go to Connections. All the spin box controls do not display the text box part with sufficient width.
2.Right click on any added torrent in the main window and check the "Download in squential order" or "Download first and last pieces first" menu items. The items are always checked regardless of the toggle.


Actual results:
The spin boxes show their text box components with inadequate size, text is unreadable. The menu items that can be checked/unchecked are always displayed checked regardless of their toggle state.

Expected results:
The spin boxes should show the text box component properly sized and the checkable menu items should show check marks correctly according to their toggle state.

Additional info: