Error when initializing idrs! from [very near] solution

[UserQuestions]

When initializing idrs! from near to the solution, I receive an error that res is not defined. In looking closer, this is likely because res is referenced only on line 88 of idrs.jl and is not created anywhere. Line 88 is only called if normR<=tol, which is commented to occur when the "initial guess is a good enough solution." Replacing the return value in this case to X, log seems to work fine for me, though this may be bad/breaking for other reasons. I thought I would report this here in case this or another solution would be an easy fix. Thank you for putting this package together!

[mschauer]

Thank you, this bug looks like an oversight when introducing a new mechanism to save the iteration history, 0c78f03#diff-6623a48145b6c4f92eec15da7d571fa4

[UserQuestions]

Great to hear! Do you know what the second output of the return value should be in such a case?