$ git clone -n https://src.fedoraproject.org/rpms/pam-kwallet.git /var/lib/mock/f40-build-2068687-49293/root/chroot_tmpdir/scmroot/pam-kwallet
Cloning into '/var/lib/mock/f40-build-2068687-49293/root/chroot_tmpdir/scmroot/pam-kwallet'...
$ git fetch origin 40b00d578454c5dc959ebbc518fe4b2c7bbaad76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pam-kwallet
 * [new ref]         40b00d578454c5dc959ebbc518fe4b2c7bbaad76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 40b00d5 fix: upload missing sources