$ git clone -n https://src.fedoraproject.org/rpms/libkdcraw.git /var/lib/mock/f45-build-16440-486/root/chroot_tmpdir/scmroot/libkdcraw
Cloning into '/var/lib/mock/f45-build-16440-486/root/chroot_tmpdir/scmroot/libkdcraw'...
$ git fetch origin 5636e57cdaba5d4788cd8be54a1d98cc38493134:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkdcraw
 * [new ref]         5636e57cdaba5d4788cd8be54a1d98cc38493134 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5636e57 26.08.1