[LyX/master] Add some forgotten 'ProvidesMatters' cases

[Juergen Spitzmueller]

commit 46807784ca6adde65b1b07b869118295fa5ee801
Author: Juergen Spitzmueller <spitz at lyx.org>
Date:   Tue Aug 4 11:07:04 2026 +0200

    Add some forgotten 'ProvidesMatters' cases
---
 lib/layouts/mwbk.layout   | 3 ++-
 lib/layouts/svmono.layout | 5 +++--
 lib/layouts/svmult.layout | 3 ++-
 3 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/lib/layouts/mwbk.layout b/lib/layouts/mwbk.layout
index 193b12d28d..5e6866fe06 100644
--- a/lib/layouts/mwbk.layout
+++ b/lib/layouts/mwbk.layout
@@ -10,7 +10,8 @@ Format 120
 Input stdclass.inc
 Input numreport.inc
 
-Sides                   2
+Sides                 2
+ProvidesMatters       1
 
 ClassOptions
 	PageStyle     empty|plain|outer|headings|myheadings|uheadings|myuheadings
diff --git a/lib/layouts/svmono.layout b/lib/layouts/svmono.layout
index 3441cedb91..c5a6006241 100644
--- a/lib/layouts/svmono.layout
+++ b/lib/layouts/svmono.layout
@@ -11,8 +11,9 @@
 Format 120
 Input svcommon.inc
 
-TocDepth                2
-DocBookRoot		        book
+TocDepth		2
+DocBookRoot		book
+ProvidesMatters		1
 
 ClassOptions
 	FontSize	10
diff --git a/lib/layouts/svmult.layout b/lib/layouts/svmult.layout
index 2689f00be5..0609d22ea9 100644
--- a/lib/layouts/svmult.layout
+++ b/lib/layouts/svmult.layout
@@ -13,7 +13,8 @@ Format 120
 Input svcommon.inc
 
 # Even though this layout can also be used for articles...
-DocBookRoot		        book
+DocBookRoot		book
+ProvidesMatters		1
 
 ClassOptions
 	FontSize	""