$ git clone -n https://src.fedoraproject.org/rpms/yubikey-manager-qt.git /var/lib/mock/f41-build-848372-164420/root/chroot_tmpdir/scmroot/yubikey-manager-qt
Cloning into '/var/lib/mock/f41-build-848372-164420/root/chroot_tmpdir/scmroot/yubikey-manager-qt'...
$ git fetch origin af9257763a02de45c1b9d912ac3655ed419840f2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yubikey-manager-qt
 * [new ref]         af9257763a02de45c1b9d912ac3655ed419840f2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af92577 1.2.5-7