Running a snap gives error "Too many levels of symbolic links"

I'm the maintainer of the CMake snap (not yet public, but is available as Unlisted while I work through final teething issues). Today we encountered an error on CentOS 7 systems where home directories are under a symbolic link. Each user's home directory is structured as `/export/home/username` where `/export/home` is a symlink to `/home`. If we install the cmake snap and issue the command `cmake --version`, we see the following error message instead of the expected output (where `myusername` is the person's login ID):

    cannot create user data directory: /export/home/myusername/snap/cmake/12: Too many levels of symbolic links

The same snap works fine on my CentOS 7 VM which does not have any symlinks in the home directory path, so it seems that `snapd` is not able to handle such situations. Having symlinks in the home directory path is not all that unusual in large company deployments, so this is not just a pathological case.