Allow editing previous revisions of assets in the current version tag

docs/changelog/7.x.x.txt

@@ -85,6 +85,7 @@
    WebGUI and put into the WebGUI Community Wiki, http://www.webgui.org/community-wiki.
  - The Table of Contents view was removed from the Help system.  The only view
    is now the Help Index.
+ - Allow editing previous revisions of assets in the current version tag
 
 7.3.21
  - fix: Self-deactivation doesn't show login screen after success

lib/WebGUI/AssetVersioning.pm

@@ -142,7 +142,9 @@ Returns 1 if it's not locked. Returns 1 if is locked, and the user is using the
 sub canEditIfLocked {
 	my $self = shift;
 	return 1 unless ($self->isLocked);
-	return ($self->session->scratch->get("versionTag") eq $self->get("tagId"));
+	my $ver_tag = $self->session->scratch->get("versionTag");
+	my ($count) = $self->session->db->quickArray("select count(*) from assetData where assetId=? and tagId=?",[$self->getId, $ver_tag]);
+	return $count > 0;
 }