$ git clone -n https://src.fedoraproject.org/rpms/libkdcraw.git /var/lib/mock/f42-build-863718-171734/root/chroot_tmpdir/scmroot/libkdcraw
Cloning into '/var/lib/mock/f42-build-863718-171734/root/chroot_tmpdir/scmroot/libkdcraw'...
$ git fetch origin 4161126ecf825fea91a26bebd22175d2914957a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libkdcraw
 * [new ref]         4161126ecf825fea91a26bebd22175d2914957a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4161126 24.12.0