$ git clone -n https://src.fedoraproject.org/rpms/golang-github-bits-and-blooms-bitset.git /var/lib/mock/f45-build-11764-434/root/chroot_tmpdir/scmroot/golang-github-bits-and-blooms-bitset
Cloning into '/var/lib/mock/f45-build-11764-434/root/chroot_tmpdir/scmroot/golang-github-bits-and-blooms-bitset'...
$ git fetch origin 7974edde7bcd85ac2cf929581803666f92fcbe84:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-bits-and-blooms-bitset
 * [new ref]         7974edde7bcd85ac2cf929581803666f92fcbe84 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7974edd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild