autoupdate to v1.27.7-2 failed on macOS 10.13.6

[hch0808]

autoupdate opened as usual and updated the app. After installation it showed an error window: "syncthing cannot be opened due to a problem".
Here is the error report from that window:
Process: syncthing [786]
Path: /Applications/Syncthing.app/Contents/Resources/syncthing/syncthing
Identifier: syncthing
Version: ???
Code Type: X86-64 (Native)
Parent Process: Syncthing [785]
Responsible: syncthing [786]
User ID: 501

Date/Time: 2024-05-09 07:56:18.944 +0200
OS Version: Mac OS X 10.13.6 (17G14042)
Report Version: 12
Anonymous UUID: 970E6E03-2508-97CC-AFA3-60427CF4D8B7

Time Awake Since Boot: 2400 seconds

System Integrity Protection: enabled

Crashed Thread: 0

Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note: EXC_CORPSE_NOTIFY

Termination Reason: DYLD, [0x9]

Application Specific Information:
dyld: launch, loading dependent libraries

Dyld Error Message:
cannot load 'syncthing' (load command 0x80000034 is unknown)

Binary Images:
0x103642000 - 0x1043d1ff7 +??? (0) <8B2E323E-8012-3913-B8F8-95A2D26F3B29> (null)
0x10dc7b000 - 0x10dcc5adf +??? (551.5) (null)

Model: MacBookAir4,2, BootROM 135.0.0.0.0, 2 processors, Intel Core i7, 1,8 GHz, 4 GB, SMC 1.73f66
Graphics: Intel HD Graphics 3000, Intel HD Graphics 3000, Built-In
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
Memory Module: BANK 1/DIMM0, 2 GB, DDR3, 1333 MHz, 0x80AD, 0x484D54333235533642465238432D48392020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0xE9), Broadcom BCM43xx 1.0 (5.106.98.102.30)
Bluetooth: Version 6.0.7f22, 3 services, 18 devices, 1 incoming serial ports
Network Service: Wi-Fi, AirPort, en0
Serial ATA Device: APPLE SSD SM256C, 251 GB
USB Device: USB 2.0 Bus
USB Device: FaceTime Camera (Built-in)
USB Device: Hub
USB Device: Apple Internal Keyboard / Trackpad
USB Device: BRCM20702 Hub
USB Device: Bluetooth USB Host Controller
USB Device: USB 2.0 Bus
USB Device: Hub
USB Device: Internal Memory Card Reader
Thunderbolt Bus: MacBook Air, Apple Inc., 8.1

[xor-gate]

You are out of luck and need to manually downgrade to v1.27.6-1 and manually disable the auto updater from commandline.

[xor-gate]

For reference, duplicate of #217, #219