'new lens' incorrectly sets exposure

[Sybren Stüvel]

Using Hugin 2018.0.0.5abfb4de7961 on Kubuntu Linux.

In short: selecting a stack of exposure-bracketed images, then choosing 'New Lens' causes the photometric parameters of the first image to be used by all the images of the entire stack.

To reproduce:

- Load an exposure-bracketed stack of images, say with exposures EV=10, 11, 12, 13, 14.
- Switch to the Photos tab if not there already, and choose 'Photometric parameters' in the right-hand box of radio buttons.
- Check that the photos have different exposures, as expected.
- Select all the photos.
- Right-click and choose Lens → New Lens.
- See that the photos now all have the same exposure.

System info:

Operating System: Linux 4.15.0-23-generic x86_64
Architecture: 64 bit
Free memory: 276816 kiB

Hugin
Version: 2018.0.0.5abfb4de7961
Path to resources: /usr/share/hugin/xrc/
Path to data: /usr/share/hugin/data/
Hugins camera and lens database: /home/sybren/.hugindata/camlens.db
Multi-threading using C++11 std::thread and OpenMP

Libraries
wxWidgets: wxWidgets 3.0.4
wxWidgets Library (wxGTK port)
Version 3.0.4 (Unicode: wchar_t, debug level: 1),
Runtime version of toolkit used is 2.24.
Compile-time GTK+ version is 2.24.32.

libpano13: 2.9.19
Boost: 1.65.1
Exiv2: 0.25
SQLite3: 3.22.0
Vigra: 1.11.0
LittleCMS2: 2.9

[tmodes (tmodes)]

Fixed in repository.
But keep in mind that when in a stack the position is linked the lens parameters should also be linked - so there shouldn't be different lenses in the same stack. This is not enforced.