Turning off WiFi disconnects Bluetooth Headphones

[aero31aero]

I thought it must be a flake so I tried this twice.

1. Connect via WiFi to some network.
2. Connect via Bluetooth to some audio headset. (perhaps valid for all bluetooth devices).
3. Turn off WiFi using the toggle in the applet.

Bluetooth Headset disconnects. Trying to reconnect now fails, and turning on WiFi again enables flawless connecting to the bluetooth device.

• Version:4.1 Loki last updated March 03 uname -s : Linux rohitt-laptop 4.15.7-041507-generic #201802280530 SMP Wed Feb 28 10:31:47 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
• bluetooth drivers: I had to install custom drivers for https://github.com/lwfinger/rtl8723au_bt
• lspci output

00:00.0 Host bridge: Intel Corporation Broadwell-U Host Bridge -OPI (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Broadwell-U Integrated Graphics (rev 09)
00:03.0 Audio device: Intel Corporation Broadwell-U Audio Controller (rev 09)
00:04.0 Signal processing controller: Intel Corporation Broadwell-U Camarillo Device (rev 09)
00:14.0 USB controller: Intel Corporation Wildcat Point-LP USB xHCI Controller (rev 03)
00:16.0 Communication controller: Intel Corporation Wildcat Point-LP MEI Controller #1 (rev 03)
00:1b.0 Audio device: Intel Corporation Wildcat Point-LP High Definition Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #1 (rev e3)
00:1c.1 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #2 (rev e3)
00:1c.2 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #3 (rev e3)
00:1c.3 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #4 (rev e3)
00:1c.4 PCI bridge: Intel Corporation Wildcat Point-LP PCI Express Root Port #5 (rev e3)
00:1f.0 ISA bridge: Intel Corporation Wildcat Point-LP LPC Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation Wildcat Point-LP SATA Controller [AHCI Mode] (rev 03)
00:1f.3 SMBus: Intel Corporation Wildcat Point-LP SMBus Controller (rev 03)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 0a)
0a:00.0 Display controller: Advanced Micro Devices, Inc. [AMD/ATI] Topaz XT [Radeon R7 M260/M265] (rev 81)

Sidenote: A few days ago I was trying to connect my bluetooth headset but failing. I suspect I might have had my WiFi off at the time but I surely cannot recall that now. Since I use the applet for disabling the wifi, surely the issue is in the way it disables.

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