Looks like it happens because DT_SONAME isn't correct.
Ubuntu:
$ objdump -p /usr/lib/libcpupower.so.4.13.0-32 | grep SONAME SONAME libcpupower.so.4.13.0-32
Debian:
$ objdump -p /usr/lib/libcpupower.so.0.0.1 | grep SONAME SONAME libcpupower.so.1
Looks like it happens because DT_SONAME isn't correct.
Ubuntu:
$ objdump -p /usr/lib/ libcpupower. so.4.13. 0-32 | grep SONAME so.4.13. 0-32
SONAME libcpupower.
Debian:
$ objdump -p /usr/lib/ libcpupower. so.0.0. 1 | grep SONAME
SONAME libcpupower.so.1