$ git clone -n https://src.fedoraproject.org/rpms/icecast.git /var/lib/mock/f39-build-1522602-35939/root/chroot_tmpdir/scmroot/icecast
Cloning into '/var/lib/mock/f39-build-1522602-35939/root/chroot_tmpdir/scmroot/icecast'...
$ git fetch origin e1b9f83c8412b33a60e56bf97148a28a33d6fdbd:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/icecast
 * [new ref]         e1b9f83c8412b33a60e56bf97148a28a33d6fdbd -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1b9f83 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild