Presets containing LFO connections crash LMMS 1.2 RC8

[Sauerstoffdioxid]

Description

I've made a preset for Zyn some time ago that used a VST reverb effect and automated one of it's parameters with a LFO from the controller rack. I do admit, saving such a construction as preset is pretty stupid, but it has worked until now (meaning it didn't crash at least). Now that I wanted to use it again, I noticed it consistently crashes LMMS regardless of how I add it to the track. Note that the VST effect is not necessary for the crash to occur (see below).

Steps to reproduce

1. Open LMMS
2. Add a LFO in the controller rack
3. Connect it to pretty much any knob (e.g. the filter frequency) of e.g. TripleOscillator
4. Save it as preset

Expected results

LMMS would ignore the "unknown" LFO as it used to do before.

Actual results

After saving the preset, upon opening a different project (e.g. the "Empty" template) LMMS crashed for me.
Later, when I try to add the preset to the song editor, LMMS crashes (closes itself, no error message). It does this as soon as I left-click it (including dragging) as well as using the context menu.

System info

Windows 10 Insider Preview 10.0.18362.30 (19h1_release) amd64 2019-04 (So basically Win10 64-bit)
LMMS RC8 as available on the website

This does not occur on LMMS 1.2 RC5 and before.

[PhysSong]

I think the issue is already reported in #4927 and fixed via #4939.

[Sauerstoffdioxid]

Yup, seems like that's it. Looks like I didn't find it when searching for a report earlier.