[LyX/master] Amend 7441172d

[Enrico Forestieri]

commit 9ebc7d95121091e726d52e2c52a1a0032fe9585b
Author: Udi-Fogiel <udifoglle at gmail.com>
Date:   Fri Dec 29 20:10:50 2023 +0100

    Amend 7441172d
    
    colswitch was checking for oldstyle instead of normalcolor
    to see if we need \normalcolor, which lead to appearence
    of \color{none} in some cases, but "none" is not a known
    color.
---
 src/mathed/InsetMathColor.cpp |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/mathed/InsetMathColor.cpp b/src/mathed/InsetMathColor.cpp
index e3be8ff..549ff37 100644
--- a/src/mathed/InsetMathColor.cpp
+++ b/src/mathed/InsetMathColor.cpp
@@ -111,9 +111,9 @@ void InsetMathColor::write(TeXMathStream & os) const
 	bool adjchk = os.latex() && !os.inMathClass() && (normalcolor(color_) || oldstyle_);
 	bool adjust_front = frontclass != "mathord" && adjchk;
 	bool adjust_back = backclass != "mathord" && adjchk;
-	docstring const colswitch =
-		oldstyle_ ? from_ascii("{\\color{") + color_ + from_ascii("}")
-			  : from_ascii("{\\normalcolor ");
+	docstring const colswitch = normalcolor(color_)
+			? from_ascii("{\\normalcolor ")
+			: from_ascii("{\\color{") + color_ + from_ascii("}");
 
 	if (adjust_front && adjust_back) {
 		os << '\\' << frontclass << colswitch << cell(0).front() << '}';