Index: openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl,v
diff -u -r1.68.2.24 -r1.68.2.25
--- openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl	15 Oct 2022 17:07:46 -0000	1.68.2.24
+++ openacs-4/packages/acs-subsite/tcl/subsite-procs.tcl	6 Feb 2023 15:01:09 -0000	1.68.2.25
@@ -855,9 +855,13 @@
         foreach {var param} $settings {
             set default [string trim [set $var]]
             set value   [string trim [parameter::get -parameter $param -package_id $subsite_id]]
-            regsub -all -- {\r\n} $value "\n" value
-            regsub -all -- {\r\n} $default "\n" default
-            set collect_p [expr {$default eq $value}]
+            regsub -all -- {\s+} $value { } value
+            regsub -all -- {\s+} $default { } default
+            #
+            # An empty value is superseded by the default. An empty
+            # default does not prescribe any value.
+            #
+            set collect_p [expr {$value eq "" || $default eq "" || $default eq $value}]
             if {!$collect_p} {
                 ns_log notice "theme '$theme' parameter $var differs on subsite '$subsite_id': default '$default' actual value '$value'"
                 break