swirldev/swirl — pull request #169 by WilCrofter (2014-06-10 13:31:28+00:00)
Title: DON'T MERGE: Corrected order of mergeList arguments

Corrected order of mergeList arguments when updating delta during automatic detection of new variables.

Cleaning e$delta after failed instructions should probably be done as well, but since the above seems to correct the known problem, I've not done it.