Python scripts register conflicts

I'm running Python 2.7 scripts in GIMP. They seem to work okay, but there's always an MS-DOS window that pops up saying "Warning: Two different plugins tried to register" for about 200 plugins. The names all start with "Gegl", and I can find no files corresponding to them.

Does anyone have any idea what's going on?

EDIT: Here's a sample of the error messages:
C:\Software\GIMPPortable\App\gimp\lib\gimp\2.0\python/gimpfu.py:868: Warning: Two different plugins tried to register 'GeglOpwebp-save_c'.
gimp.main(None, None, _query, _run)
C:\Software\GIMPPortable\App\gimp\lib\gimp\2.0\python/gimpfu.py:868: Warning: Two different plugins tried to register 'GeglOpwebp-load_c'.
gimp.main(None, None, _query, _run)
C:\Software\GIMPPortable\App\gimp\lib\gimp\2.0\python/gimpfu.py:868: Warning: Two different plugins tried to register 'GeglOpvector-stroke_c'.
gimp.main(None, None, _query, _run)
C:\Software\GIMPPortable\App\gimp\lib\gimp\2.0\python/gimpfu.py:868: Warning: Two different plugins tried to register 'GeglOpvector-fill_c'.
gimp.main(None, None, _query, _run)
C:\Software\GIMPPortable\App\gimp\lib\gimp\2.0\python/gimpfu.py:868: Warning: Two different plugins tried to register 'GeglOpPlugIn-transform-core'.
gimp.main(None, None, _query, _run)