$ git clone -n https://git.cclinux.org/stage/rpms/udisks2.git /var/lib/mock/dist-circle8-build-110163-65621/root/chroot_tmpdir/scmroot/udisks2
Cloning into '/var/lib/mock/dist-circle8-build-110163-65621/root/chroot_tmpdir/scmroot/udisks2'...
$ git fetch origin e8b1db422c3642d15813cad725a7fd74f99cc71f:KOJI_FETCH_HEAD
From https://git.cclinux.org/stage/rpms/udisks2
 * [new ref]         e8b1db422c3642d15813cad725a7fd74f99cc71f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e8b1db4 import udisks2-2.9.0-16.el8