$ git clone -n https://src.fedoraproject.org/rpms/drumstick.git /var/lib/mock/f41-build-side-1-3049995-37945/root/chroot_tmpdir/scmroot/drumstick
Cloning into '/var/lib/mock/f41-build-side-1-3049995-37945/root/chroot_tmpdir/scmroot/drumstick'...
$ git fetch origin f7d56adf214930f0a52f74e573930eaf4d4497fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/drumstick
 * [new ref]         f7d56adf214930f0a52f74e573930eaf4d4497fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7d56ad update gitignore and source files