Wrong lexing after deleting a line

STR:
Paste the following code into a new document and set the language to CSS.

:root
{
	--toolbarbutton-inner-padding: 6px !important;
	--arrowpanel-border-radius: 0px !important;
	--panel-border-radius: 0px !important;
}

.tab-context-line { height: 30px !important;  flex: 1 !important; }

Delete line 5.

Result:
Line 7 is not styled properly.

Switching to another tab and back, fixes the issue.

Notepad++ v8.4.8 (64-bit)
Build time : Jan 20 2023 - 14:41:09
Path : C:---notepad++.exe
Command Line :
Admin mode : ON
Local Conf mode : ON
Cloud Config : OFF
OS Name : Windows 10 Pro (64-bit)
OS Version : 20H2
OS Build : 19042.985
Current ANSI codepage : 1255
Plugins :
ComparePlus (1.1)
HTMLTag (1.3.6)
MenuIcons (2.0.2)
PythonScript (2)
_CustomizeToolbar (4.2)

Start by reproducing the issue in Notepad++ v8.4.8 with the provided CSS snippet: delete line 5 and inspect line 7 before and after switching tabs. Trace the CSS lexing or styling refresh triggered by line deletion; done means line 7 is styled correctly immediately without leaving and returning to the tab.