More evidence is required before accepting such a claim. Please quote your source in order to identify the report. It could have been also Bf 109G-2/trop captured in damaged state in the Western Desert in late 1942. 
Also, the G-14 was not coming into operation until July 1944, G-10 not until October 1944. High altitude G-6/AS with MW injection however was operational since March/April 1944.