Uppercase key not reported as an error when shift is missed

[jjbushby]

Describe the bug A shortcut that only has an uppercase letter is not correctly reporting errors when the Shift key is missed.

To Reproduce Steps to reproduce the behaviour:

1. Create a shortcut with "Q" (shift+q).
2. Practice this shortcut by itself. Use "q" many times. Use "Q" (shift+q) many times. Use "a" once. Use "A" (shift+A) once. Use "j" once. Use "J" (shift+J) once.
3. The "q" isn't accepted as valid but isn't being reported as an error.
4. The "Q" (shift+q) is accepted correctly.
5. The "a" is rejected correctly.
6. The "A" (shift+A) is rejected correctly.
7. The "j" is rejected correctly.
8. The "J" (shift+J) is rejected correctly.
9. The final report only has 4 errors. This is wrong because the counting isn't reporting the "q" errors.

Screenshots N/A

Additional context This doesn't occur in a multi-character shortcut. For example, "allah" is correctly rejected when the word is "Allah".