After deleting Exif.Nikon3.ISOSpeed, Exif.NikonSi02xx.ISO instead of Exif.NikonSiD300a.ISO is shown

[norbertwg]

To Reproduce

$ exiv2 -PEkysvt NikonD300.jpg | find "ISO"
Exif.Nikon3.ISOSpeed Short 4 1 6400 6400
Exif.Nikon3.ISOSettings Short 4 1 6400 6400
Exif.NikonIi.ISO Byte 1 132 6400
Exif.NikonIi.ISOExpansion Short 2 260 Hi 1.0
Exif.NikonIi.ISO2 Byte 1 132 6400
Exif.NikonIi.ISOExpansion2 Short 2 260 Hi 1.0
Exif.NikonSiD300a.ISO Byte 1 132 6400
Exif.Nikon3.HighISONoiseReduction Short 2 1 Minimal

$ exiv2 -M"del Exif.Nikon3.ISOSpeed" NikonD300.jpg

$ exiv2 -PEkysvt NikonD300.jpg | find "ISO"
Exif.Nikon3.ISOSettings Short 4 1 6400 6400
Exif.NikonIi.ISO Byte 1 132 6400
Exif.NikonIi.ISOExpansion Short 2 260 Hi 1.0
Exif.NikonIi.ISO2 Byte 1 132 6400
Exif.NikonIi.ISOExpansion2 Short 2 260 Hi 1.0
Exif.NikonSi02xx.ISO Byte 1 78 283
Exif.Nikon3.HighISONoiseReduction Short 2 1 Minimal

Branch main d2253c9

Desktop (please complete the following information):

• OS and version: Windows 11
• Exiv2 version and source: exiv2 1.0.0.9
• Compiler and version: MSVC 2022
• Compilation mode and/or compiler flags: Debug

Additional context

Version 0.27.4 behaves in the same way.