Invalid IL when using ternaries

[SurDno]

A refactoring from an if/else to a ternary expression may cause the AssemblyPatcher to emit invalid IL. The generated ldftn operand retains a metadata token from what I assume is the temporary Roslyn-compiled assembly. At runtime this leads to the following exception:

InvalidProgramException: Invalid IL code in Mods.CustomScenarios.StartScenarioWindow:Fill (): IL_0087: ldftn     0x06009c75

The issue can be reproduced with following code (example from CustomScenarios mod):

           // **Following code works because we don't use ternaries:**
           // if (localizedName == techName)
           //     scenarioItem.SetName(scenario.Name);
           // else 
           //     scenarioItem.SetName(localizedName);

           // **This generates a runtime error:**
           scenarioItem.SetName(localizedName == techName ? scenario.Name : localizedName);

[SurDno]

Got a similar one, this time on a completely valid IL instruction:

InvalidProgramException: Invalid IL code in Mods.CustomScenarios.StartScenarioWindow:FillForSelected (int): IL_00d3: ldc.r4    2

The code was:

            if (targetY - anchoredPosition.y > height) {
                anchoredPosition.y = targetY + anchoredPosition.y > height ? targetY - height : 0.0f;
            } else if (targetY - itemHeight * 2.0 - anchoredPosition.y < 0.0) {
                anchoredPosition.y = targetY - itemHeight * 2f;
            }

Changing it to the version without ternaries did not work:

            if (targetY - anchoredPosition.y > height) {
                if (targetY + anchoredPosition.y > height)
                    anchoredPosition.y = targetY - height;
                else
                    anchoredPosition.y = 0.0f;
            } else if (targetY - itemHeight * 2.0 - anchoredPosition.y < 0.0) {
                anchoredPosition.y = targetY - itemHeight * 2f;
            }