registry and extension problems on master 4.3 Linux 64bit

Have there been recent changes to component or extension registration,
as I'm seeing this in my master build of today,  Linux 64bit :

instdir/program/soffice
Python exception: <class 'AttributeError'>: 'module' object has no
attribute 'writeRegistryInfo', traceback follows
  /home/Development/libo/core/instdir/program/pythonloader.py:152 in
function writeRegistryInfo() [return mod.writeRegistryInfo(
self.ctx.ServiceManager, regKey )]


warn:desktop.deployment:25026:1:desktop/source/deployment/registry/dp_backend.cxx:683:
unexpected RuntimeException "<class 'AttributeError'>: 'module' object
has no attribute 'writeRegistryInfo', traceback follows
  /home/Development/libo/core/instdir/program/pythonloader.py:152 in
function writeRegistryInfo() [return mod.writeRegistryInfo(
self.ctx.ServiceManager, regKey )]

"

warn:configmgr:25045:1:configmgr/source/xcuparser.cxx:173: bad set node
<prop> member in
"file:///home/Development/libo/core/instdir/program/../program/../user/extensions/bundled/registry/com.sun.star.comp.deployment.configuration.PackageRegistryBackend/lu5ro02d.tmp/Addons.xcu"
warn:configmgr:25045:1:configmgr/source/xcuparser.cxx:173: bad set node
<prop> member in
"file:///home/Development/libo/core/instdir/program/../program/../user/extensions/bundled/registry/com.sun.star.comp.deployment.configuration.PackageRegistryBackend/lu5ro02d.tmp/Addons.xcu"


Alex