Partially built underminers may be exploded

Windows 7 Ultimate 64-bit SP1
CPU
Intel Core i7 4800MQ @ 2.70GHz 64 °C
Haswell 22nm Technology
RAM
32.0GB Dual-Channel DDR3 @ 798MHz (11-11-11-28)
Motherboard
Alienware 041W46 (U3E1)
Graphics
Generic PnP Monitor (1920x1080@60Hz)
Intel (Dell)
3071MB NVIDIA GeForce GTX 770M (Dell) 49 °C
ForceWare version: 372.70
SLI Disabled
Storage
698GB WDC WD7500BPKX- SCSI Disk Device (RAID)
10GB INTEL SSDMCEAW0 SCSI Disk Device (RAID)
Optical Drives
HL-DT-ST DVDRWBD CA40N SCSI CdRom Device
Audio
Realtek High Definition Audio

A partially built underminer may be exploded using a fully built underminer. In order to do this:

1 - Build an underminer.

2 - Begin building another underminer within the range of the first underminer. Do not complete it.

3 - Activate the first underminer. The second underminer shall explode as though it was fully built.

The below videoes show this in action.

2016-11-03 13-01-21.mp4

2016-11-03 13-09-58.mp4

As a side note, I managed to end up with a glitched golden statute (a minion had been turned to gold by the colossus but was still moving).

2016-11-03 13-11-18.mp4

The bug is easy to replicate, but I attached the output log anyway.

output_log.zip