Equivalence Reasoning firstline option validation problem

[bgailer]

Hello,

when using Equivalence Reasoning together with the input option firstline, the validation message says

Class "stack_cas_casstring" not found

when your first line starts with an equals sign. Maybe there needs to be a check if the first line starts with an equal sign, and then this could be shown as validation message to students like for example "Your first line should not start with an equals sign".

[sangwinc]

Thanks for reporting this and sorry for the bug. This has already been fixed in the "dev" branch, and will be in the next release.