XnView window doesn't get on top of other windows when opening a new image for an existing XnView window

[exoth]

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Subject: 1.00: XnView window doesn't get on top of other windows when opening a new image for an existing XnView window

XnView: MP 1.00 - 64 bit
OS: Windows 11 64bit

Effect: Existing XnView window doesn't properly get on top of other windows when a new image is opened
The issue is not there for XnView Classic at the same system and it's not there for XnView MP 1.00 at another computer that has Windows 10.

To reproduce:
1. Enable "Allow only one instance of XnView" option in the settings of XnView
2. Make XnView a default program for some image format.
3. Have XnView window opened with one tab already showing an image.
4. Open a new image in the Windows Expolorer or another file management software.
Actual behaviour (bug): the opened image gets added as a tab to the XnView window and the XnView icon in the Windows taskbar starts blinking yellow

Expected behaviour: the opened image gets added as a tab to the XnView window and the XnView window gets shown on top of other windows (gets focused).
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