$ git clone -n https://src.fedoraproject.org/rpms/pam_mount.git /var/lib/mock/f41-build-side-1-3070186-38790/root/chroot_tmpdir/scmroot/pam_mount
Cloning into '/var/lib/mock/f41-build-side-1-3070186-38790/root/chroot_tmpdir/scmroot/pam_mount'...
$ git fetch origin ca0e988ab063ea000b4573072cb2e5a379313f57:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam_mount
 * [new ref]         ca0e988ab063ea000b4573072cb2e5a379313f57 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ca0e988 set an an explicit package version requirement on subpackage