Index: openacs-4/packages/acs-subsite/tcl/group-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/acs-subsite/tcl/group-procs.tcl,v
diff -u -r1.60.2.14 -r1.60.2.15
--- openacs-4/packages/acs-subsite/tcl/group-procs.tcl	17 Oct 2020 16:40:23 -0000	1.60.2.14
+++ openacs-4/packages/acs-subsite/tcl/group-procs.tcl	1 Feb 2021 10:58:35 -0000	1.60.2.15
@@ -506,7 +506,7 @@
     #
     # We can't use spaces in message keys, so replace it with a "_".
     #
-    regsub -all " " $member_state "_" member_state
+    regsub -all -- " " $member_state "_" member_state
 
     switch -- $component {
         pretty_name {