Protect string extension method against concurrency
Protect string extension method against concurrency

andrew-polk/libpalaso,hatton/libpalaso,gtryus/libpalaso,ddaspit/libpalaso,mccarthyrb/libpalaso,tombogle/libpalaso,mccarthyrb/libpalaso,sillsdev/libpalaso,ddaspit/libpalaso,chrisvire/libpalaso,glasseyes/libpalaso,glasseyes/libpalaso,glasseyes/libpalaso,darcywong00/libpalaso,mccarthyrb/libpalaso,tombogle/libpalaso,glasseyes/libpalaso,tombogle/libpalaso,andrew-polk/libpalaso,darcywong00/libpalaso,andrew-polk/libpalaso,sillsdev/libpalaso,ddaspit/libpalaso,mccarthyrb/libpalaso,andrew-polk/libpalaso,JohnThomson/libpalaso,gmartin7/libpalaso,sillsdev/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,hatton/libpalaso,gtryus/libpalaso,gtryus/libpalaso,JohnThomson/libpalaso,darcywong00/libpalaso,sillsdev/libpalaso,hatton/libpalaso,ermshiperete/libpalaso,JohnThomson/libpalaso,chrisvire/libpalaso,JohnThomson/libpalaso,chrisvire/libpalaso,chrisvire/libpalaso,tombogle/libpalaso,gtryus/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,ermshiperete/libpalaso,gmartin7/libpalaso,hatton/libpalaso,ddaspit/libpalaso