Inconsistent presentation of `aria-invalid` with screen layout disabled

[lukaszgo1]

Discovered as part of #11906

Steps to reproduce:

1. In either Firefox or Chrome open data:text/html,<p>Big <span aria-invalid="spelling">caat</span> meos</p>
2. Navigate through the text with screen layout both enabled and disabled.

Actual behavior:

With screen layout disabled the document is presented as follows:

Big
spelling error caat meos

Expected behavior:

Spelling error should not be presented in the separate line regardless of the screen layout being enabled or disabled. Alternatively spelling error should be presented in a separate line though I don't like this very much.

System configuration

NVDA installed/portable/running from source:

From sources

NVDA version:

Latest master as of 12-th of February.

Windows version:

Windows 7 localy and whatever version of Windows 10 is currently in use on AppVeyor

Name and version of other software in use when reproducing the issue:

Firefox, Chrome

Other information about your system:

Other questions

Does the issue still occur after restarting your computer?

Yes

Have you tried any other versions of NVDA? If so, please report their behaviors.

The same problem can be reproduced in NVDA 2019.2

If addons are disabled, is your problem still occuring?

Yes

Did you try to run the COM registry fixing tool in NVDA menu / tools?

No