[BUG] Variant Encumberance + Midi item edit issue

[PwQt]

I dunno whether it's a VE+M issue or is this something to handle in Tidy.

• Foundry version: v12 ONLY, v11 works fine
• D&D version: 3.2.1

On a world that was made from scratch on v12 and 3.2.1.
Steps to reproduce the bug:

1. Have both Tidy5e and VE+Midi enabled
2. Edit an item
3. Close the edit window
4. Try editing the same item again

Get following errors:

Uncaught (in promise) TypeError: this.properties.has is not a function
[Detected 2 packages: system:dnd5e, tidy5e-sheet]
    get chatProperties equipment.mjs:190
    getChatData item.mjs:1479
    showCard ItemInfoCard.svelte:114
    timer ItemInfoCard.svelte:173
    setTimeout handler*instance$1e/$$self.$$.update/< ItemInfoCard.svelte:173
    update ItemInfoCard.svelte:173
    update scheduler.js:115
    flush scheduler.js:79
    promise callback*schedule_update scheduler.js:20
    make_dirty Component.js:81
    ctx Component.js:139
    1e main.js:93974
    set index.js:56
    update2 index.js:69
    onMouseEnter ItemTableRow.svelte:67
    listen dom.js:361
    m main.js:20041
    mount_component Component.js:44
    m main.js:26425
    m main.js:26578
    m main.js:18420
    m main.js:18221
    mount_component Component.js:44
    m main.js:18518
    mount_component Component.js:44
    m main.js:26677
    mount_component Component.js:44
    m main.js:39121
    m main.js:38987
    m main.js:38913
    m main.js:39184
    m main.js:38745
    m main.js:39634
    mount_component Component.js:44
    init Component.js:162
    ActorInventoryTab main.js:39751
    4f TabContent.svelte:34
    run utils.js:41
    mount_component Component.js:47
    flush scheduler.js:99
    init Component.js:164
    CharacterAttributesTab main.js:35426
    4f TabContent.svelte:34
    run utils.js:41
equipment.mjs:190:22

and

Error: An error occurred while rendering ItemSheet5e 33. item.system.properties.has is not a function
[Detected 2 packages: system:dnd5e, tidy5e-sheet]
    onError foundry.js:630
    call_wrapped libWrapper-wrapper.js:507
    <anonymous> listeners.js:138
    onError#0 libWrapper-wrapper.js:187
    render foundry.js:5771
    promise callback*render foundry.js:5769
    func2 ItemEditControl.svelte:13
    dispose ItemControl.svelte:25
    listen dom.js:361
    m main.js:22376
    mount_component Component.js:44
    m main.js:22596
    mount_component Component.js:44
    m main.js:24468
    m main.js:24556
    m main.js:24626
    mount_component Component.js:44
    m main.js:26074
    m main.js:21181
    mount_component Component.js:44
    m main.js:26018
    m main.js:26211
    m main.js:20027
    mount_component Component.js:44
    m main.js:26425
    m main.js:26578
    m main.js:18420
    m main.js:18221
    mount_component Component.js:44
    m main.js:18518
    mount_component Component.js:44
    m main.js:26677
    mount_component Component.js:44
    m main.js:39121
    m main.js:38987
    m main.js:38913
    m main.js:39184
    m main.js:38745
Caused by: TypeError: item.system.properties.has is not a function
[Detected 2 packages: system:dnd5e, tidy5e-sheet]
    properties item-sheet.mjs:160
    reduce foundry-esm.js:4270
    getData item-sheet.mjs:156
    _render foundry.js:5814
    _render foundry.js:6548
    _render foundry.js:7134
    _render item-sheet.mjs:84
    render foundry.js:5769
    func2 ItemEditControl.svelte:13
    dispose ItemControl.svelte:25
    listen dom.js:361
    m main.js:22376
    mount_component Component.js:44
    m main.js:22596
    mount_component Component.js:44
    m main.js:24468
    m main.js:24556
    m main.js:24626
    mount_component Component.js:44
    m main.js:26074
    m main.js:21181
    mount_component Component.js:44
    m main.js:26018
    m main.js:26211
    m main.js:20027
    mount_component Component.js:44
    m main.js:26425
    m main.js:26578
    m main.js:18420
    m main.js:18221
    mount_component Component.js:44
    m main.js:18518
    mount_component Component.js:44
    m main.js:26677
    mount_component Component.js:44
    m main.js:39121
    m main.js:38987
    m main.js:38913
    m main.js:39184
    m main.js:38745
foundry.js:631:30

After that everything goes wrong in the Inventory tab on that sheet - a reload of page is required.