$ git clone -n https://src.fedoraproject.org/rpms/libsigrokdecode.git /var/lib/mock/f41-build-809713-146321/root/chroot_tmpdir/scmroot/libsigrokdecode
Cloning into '/var/lib/mock/f41-build-809713-146321/root/chroot_tmpdir/scmroot/libsigrokdecode'...
$ git fetch origin f9486fa45a19eb4d888ddbf80da95f16b5414566:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libsigrokdecode
 * [new ref]         f9486fa45a19eb4d888ddbf80da95f16b5414566 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f9486fa Don't package Doxygen-generated documentation