I just tried compiling but got this error:
[ 47%] Linking C shared module libmodule_toolbox.so
/home/me/Downloads/Git.Darktable/darktable/src/views/darkroom.c: In function ‘dt_dev_change_image’:
/home/me/Downloads/Git.Darktable/darktable/src/views/darkroom.c:668:3: error: implicit declaration of function ‘dt_masks_read_forms’; did you mean ‘dt_masks_free_form’? [-Werror=implicit-function-declaration]
dt_masks_read_forms(dev);
^~~~~~~~~~~~~~~~~~~
dt_masks_free_form
[ 47%] Built target map_settings