Crash when i move the single level from world to another in a multiworld project

[cerealpxl]

Steps to reproduce:

• Create a new project
• Enable multi-worlds support
• Create a new world
• Move the only level of the current world to another world

Stack:

LDtk version: 1.5.3-64bits
Cannot read properties of undefined (reading '_world')
TypeError
TypeError: Cannot read properties of undefined (reading '_world')
    at page_Editor.selectLevel (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242596:8)
    at page_Editor.selectWorld (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242581:8)
    at HTMLLIElement.<anonymous> (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242892:13)
    at HTMLLIElement.dispatch (/tmp/.mount_LDtk 1Dscfcr/resources/app.asar/assets/js/jquery.min.js:2:43064)
    at v.handle (/tmp/.mount_LDtk 1Dscfcr/resources/app.asar/assets/js/jquery.min.js:2:41048)

Processes:

#0 App
 |--- #69 page.Editor
       |--- #70 misc.FileWatcher
       |--- #71 display.WorldRender
       |--- #72 display.LevelRender
       |--- #73 display.Camera
       |--- #74 display.Rulers[--]
       |--- #75 tool.SelectionTool[--]
       |--- #76 tool.lt.DoNothing[--]
       |--- #77 WorldTool
       |--- #78 tool.PanView[--]
       |--- #112 ui.Notification

Log:

[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[USERACTION]   Closed panel #103 ui.modal.panel.EditProject
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[USERACTION]   Opened panel #107 ui.modal.panel.WorldPanel
[FILE]         Reading HTML template worldPanel from cache
[FILE]         Reading HTML template levelInstanceForm from cache
[RENDER]       Rendering world level data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[RENDER]       Rendering world level fields data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[RENDER]       Rendering world bg...
[RENDER]       Rendering world bg...
[EVENT]        LevelSelected 1
[USERACTION]   Opened level data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"
[RENDER]       Rendering world level data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[RENDER]       Rendering world level fields data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[RENDER]       Rendering world bg...
[EVENT]        WorldSelected
[EVENT]        LevelSelected 0
[USERACTION]   Opened level data.Level#98bff7c0-4ce0-11ef-b515-274cf33016ef "Level_0"
[WARNING]      Full level render requested
[TIMELINE]     Garbage collected level: #1
[USERACTION]   Closed panel #107 ui.modal.panel.WorldPanel
[USERACTION]   Opened panel #110 ui.modal.panel.WorldPanel
[FILE]         Reading HTML template worldPanel from cache
[FILE]         Reading HTML template levelInstanceForm from cache
[USERACTION]   Closed panel #110 ui.modal.panel.WorldPanel
[USERACTION]   Opened panel #111 ui.modal.panel.WorldPanel
[FILE]         Reading HTML template worldPanel from cache
[FILE]         Reading HTML template levelInstanceForm from cache
[EVENT]        LevelSelected 1
[USERACTION]   Opened level data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"
[WARNING]      Full level render requested
[TIMELINE]     Garbage collected level: #0
[USERACTION]   Closed panel #111 ui.modal.panel.WorldPanel
[RENDER]       Rendering world level data.Level#98bff7c0-4ce0-11ef-b515-274cf33016ef "Level_0"...
[RENDER]       Rendering world level fields data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[WARNING]      Full level render requested
[RENDER]       Rendering world bg...
[RENDER]       Rendering world level data.Level#314068a0-4ce0-11ef-abd9-1514905b6998 "Level_1"...
[EVENT]        WorldSelected
[GENERAL]      Page started: page.CrashReport()
[FILE]         Loading page template: crashReport from /tmp/.mount_LDtk 1Dscfcr/resources/app.asar/assets/tpl/pages/crashReport.html
[ERROR]        Cannot read properties of undefined (reading '_world') (TypeError)
[ERROR]        TypeError: Cannot read properties of undefined (reading '_world')
    at page_Editor.selectLevel (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242596:8)
    at page_Editor.selectWorld (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242581:8)
    at HTMLLIElement.<anonymous> (file:///tmp/.mount_LDtk%201Dscfcr/resources/app.asar/assets/js/renderer.js:242892:13)
    at HTMLLIElement.dispatch (/tmp/.mount_LDtk 1Dscfcr/resources/app.asar/assets/js/jquery.min.js:2:43064)
    at v.handle (/tmp/.mount_LDtk 1Dscfcr/resources/app.asar/assets/js/jquery.min.js:2:41048)

[GENERAL]      
#0 App
 |--- #69 page.Editor
       |--- #70 misc.FileWatcher
       |--- #71 display.WorldRender
       |--- #72 display.LevelRender
       |--- #73 display.Camera
       |--- #74 display.Rulers[--]
       |--- #75 tool.SelectionTool[--]
       |--- #76 tool.lt.DoNothing[--]
       |--- #77 WorldTool
       |--- #78 tool.PanView[--]
       |--- #112 ui.Notification
 |--- #113 page.CrashReport

[FILE]         Cleared all file watches