$ git clone -n https://src.fedoraproject.org/rpms/workrave.git /var/lib/mock/f39-build-2063170-49180/root/chroot_tmpdir/scmroot/workrave
Cloning into '/var/lib/mock/f39-build-2063170-49180/root/chroot_tmpdir/scmroot/workrave'...
$ git fetch origin f7bf24be1bb99d500d10fd6eb2e3427cd7d87cfc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/workrave
 * [new ref]         f7bf24be1bb99d500d10fd6eb2e3427cd7d87cfc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f7bf24b 1.10.52