Warn only once on tainting and freezing and return self when needed
Warn only once on tainting and freezing and return self when needed

iliabylich/opal,opal/opal,iliabylich/opal,merongivian/opal,Ajedi32/opal,merongivian/opal,opal/opal,Mogztter/opal,wied03/opal,kachick/opal,opal/opal,kachick/opal,Ajedi32/opal,wied03/opal,Mogztter/opal,opal/opal,Mogztter/opal,wied03/opal,jgaskins/opal,jgaskins/opal,jgaskins/opal,kachick/opal,Ajedi32/opal,iliabylich/opal,merongivian/opal,Mogztter/opal,kachick/opal